Answer:
we reject H₀
We have enough evidence to claim that people in the sample are significantly more satisfied than others in general population at 95 % of CI
Step-by-step explanation:
Population mean μ₀ = 20
Sample data 18 23 24 44 19 27 23 26 25
Then:
Sample mean μ = 25,44
Sample standard deviation s = 7,14
Sample size n = 9
Hypoyhesis test:
Null hypothesis H₀ μ = μ₀
Alternative hypothesis Hₐ μ > μ₀
Significance level α = 0,05 CI = 95 %
We must develop a t-student one-tail test ( to the right ) as follows
t(c) = ??
degree of freedom df = n - 1 df = 8 and α = 0,05
Then from t-student table t(c) = 1, 8595
To calculate t(s) = ( μ - μ₀ ) / s/√n
t(s) = ( 25,44 - 20 ) * √9 / 7,14
t(s) = 5,44*3 / 7,14
t(s) = 2,29
Comparing t(c) and t(s)
t(s) > t(c)
Then t(s) is in the rejection region we reject H₀
We have enough evidence to claim that people in the sample are significantly more satisfied than others in general population at 95 % of CI
Could somebody pls help me with this question
Answer:
18 minutes is the answer
Step-by-step explanation:
•Time couple rested in 2 hrs = 12 min
•Time couple rested in 1 hr = 12/ 2 min = 6min
•Time couple rested in 3 hrs = 6×3 min = 18 min
HOPE IT HELPS YOU
MARK ME AS BRAINIEST
AND YOU CSN THANK ME IN THE COMMENT
Find the slope of the line that passes
through these two points.
(-2, 1); (3, 2)
Answer:
1/5
Step-by-step explanation:
as 2-1/3-(-2)
Equals 1/5
I WILL GIVE BRAINLIEST IF FIRST PERSON GET THE ANSWER RIGHT HELP!!!!!!!!!!!!
The figure shows a carpeted room. How many square feet of the room are carpeted?
A polygon that is a part of a rectangle is shown with perpendicular sides. The top is labeled 11 feet. The line on the left is labeled 9 feet. The side on bottom is labeled 6 feet, and the side adjacent to it on the right is labeled 5 feet
69 square feet
74 square feet
99 square feet
129 square feet
Answer:
i would say 74 but i may be wrong
Step-by-step explanation:
Evaluate -x+23y if x=9 and y=2
Answer:
The answer is 37
I need help with This one
Answer:
1 and 2
Step-by-step explanation:
If y was 1: -2 x 1 + 18 = -2 + 18
= 16 This works
If y was 2: -2 x 2 + 18 = -4 + 18
= 14 This works
If y was 3: -2 x 3 + 18 = -6 + 18
= 12 This does not work since -2y + 18 has to be greater than 12.
Simplify this expression.
[tex]\frac{4^{9} }{4^{3} }[/tex]
9x9x9x9divide by 4x4x4
Answer:
4⁹ / 4³ = 4⁶ = 4096
Step-by-step explanation:
You can solve this by realising that exponents (the 9 and the 3 in this case), simply tell you how many times to multiply the numbers together.
What you're see there then can also be expressed as:
[tex]\frac{4 \times 4 \times 4 \times 4 \times 4 \times 4 \times 4 \times 4 \times 4}{4 \times 4 \times 4}[/tex]
Because the numerator and denominator are all multiples of the same number repeatedly, you can simply eliminate the bottom three fours from the top and bottom, giving you:
[tex]\frac{4 \times 4 \times 4 \times 4 \times 4 \times 4 \times (4 \times 4 \times 4)}{(4 \times 4 \times 4)}\\\\= 4 \times 4 \times 4 \times 4 \times 4 \times 4[/tex]
[tex]4 \times 4 \times 4 \times 4 \times 4 \times 4[/tex]
A simpler way to look at it is to understand that when the same number is being raised to different bases, and then multiplied or divided, you can simply add or subtract the exponents. For example, speaking very generically:
[tex]x^a \times x^b = x^{a + b}[/tex]
and
[tex]x^a \div x^b = x^{a - b}[/tex]
In this case then, we can simply say:
[tex]\frac{4^9}{4^3} = 4^{9 - 3} = 4^6[/tex]
So when simplified, the expression is equal to 4⁶, or 4096.
What is the equation for calculating the area of a triangle?
A = 1/4 base · height
B = length · width
C = pi · height
D = 1/2 base · height
Answer:
A= 1/2 base*height
Step-by-step explanation:
: )
The correct equation for calculating the area of a triangle is D = 1/2 base · height.
The equation for calculating the area of a triangle is D = 1/2 base · height. This formula represents the most commonly used method for finding the area of a triangle.
To use this formula, you multiply the base of the triangle by its corresponding height, and then divide the result by 2.
This is because the area of a triangle is equal to half the product of its base and height.
By dividing by 2, we account for the fact that a triangle is essentially half of a parallelogram.
Therefore, the correct equation for calculating the area of a triangle is D = 1/2 base · height.
Learn more about the triangles here:
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A. 50 degrees
B. 130 degrees
C. 9 units
D.22 units
E. 13 units
Answer: all i can do hope this helps a bit 2. 130 degrees
5. 13 units
Find Median in this data set
12 65 3 8 23 64 19 53 0 24 57 15 39. with explanation pls!
Answer:
23
Step-by-step explanation:
12, 65, 3, 8, 23, 64, 19, 53, 0, 24, 57, 15, 39
First put in order.
0, 3, 8, 12, 15, 19, 23, 24, 39, 53, 57, 64, 65
Eliminate each number alternating from beginning and end like so.
3, 8, 12, 15, 19, 23, 24, 39, 53, 57, 64
Keep doing until you get to the middle.
8, 12, 15, 19, 23, 24, 39, 53, 57
12, 15, 19, 23, 24, 39, 53
15, 19, 23, 24, 39
19, 23, 24
23
Since 23 is the last remaining number, that is the median.
Which expressions have a value of 16/81? Check all that apply.
Answer:
2) 4/9
Step-by-step explanation:
well when you simplify you will get this awnser.
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\textsf{Which expressions have a value of }\mathsf{\dfrac{16}{81}?\ }\large\textsf{Check ALL that APPLY. }[/tex]
[tex]\mathsf{(\dfrac{2}{3})^4}\\\\\mathsf{= \bf \dfrac{2}{3}\times\dfrac{2}{3}\times\dfrac{2}{3}\times \dfrac{2}{3}}\\\\\mathsf{= \bf \dfrac{2\times2\times2\times2}{3\times3\times3\times3}}\\\\\mathsf{2\times2\times2\times2}\\\mathsf{2\times2 = \bf 4}\\\mathsf{4\times4= \bf 16}\\\\\mathsf{\dfrac{\bf 16}{3\times3\times3\times3}}\\\\\mathsf{3\times3\times3\times3}\\\mathsf{3\times3 = 9}\\\mathef{9\times9 = \bf 81}\\\\\mathsf{\dfrac{16}{\bf 81}}\\\\\mathsf{= \bf \dfrac{16}{81}}[/tex]
[tex]\large\text{Option A. could POSSIBLY be your ANSWER}[/tex]
[tex]\mathsf{(\dfrac{16}{3})^4}\\\\\mathsf{= \dfrac{16}{3}\times\dfrac{16}{3}\times\dfrac{16}{3}\times\dfrac{16}{3}}\\\\\mathsf{= \dfrac{16\times16\times16\times16}{3\times3\times3\times3}}\\\\\mathsf{16\times16\times16\times16}\\\mathsf{16\times16= \bf 256}\\\mathsf{256\times256 = \bf 65,536}\\\\\mathsf{\dfrac{\bf 65,536}{3\times3\times3\times3}}\\\\\mathsf{3\times3\times3\times3}\\\mathsf{3\times3 = \bf 9}\\\mathsf{9\times9 = \bf 81}\\\\\\\mathsf{\dfrac{65,536}{\bf 81}}\\\\\mathsf{\bf = \dfrac{65,536}{81}}[/tex]
[tex]\large\text{Option B. CANNOT be your POSSIBLE ANSWER}[/tex]
[tex]\mathsf{(\dfrac{4}{81})^2}\\\\\mathsf{=\dfrac{4}{81}\times\dfrac{4}{81}}\\\\\mathsf{= \dfrac{4\times4}{81\times81}}\\\\\mathsf{4\times4= \bf 16}\\\\\mathsf{\dfrac{\bf 16}{81\times81}}\\\\\mathsf{81\times81=\bf 6,561}\\\\\mathsf{\dfrac{16}{\bf 6,561}}\\\\\mathsf{= \bf \dfrac{16}{6,561}}[/tex]
[tex]\large\text{Option C. CANNOT be your POSSIBLE ANSWER}[/tex]
[tex]\mathsf{(\dfrac{4}{9})^2}\\\\\mathsf{= \dfrac{4}{9}\times \dfrac{4}{9}}\\\\\mathsf{= \dfrac{4\times4}{9\times9}}\\\\\mathsf{4\times4 = \bf 16}\\\\\mathsf{\dfrac{\bf 16}{9\times9}}\\\\\mathsf{9\times9 = \bf 81}\\\\\\\mathsf{\dfrac{16}{\bf 81}}\\\\\\\mathsf{= \bf \dfrac{16}{81}}[/tex]
[tex]\large\text{Option D. could POSSIBLY be your ANSWER}[/tex]
[tex]\mathsf{(\dfrac{1}{81})^1^6}\\\\\mathsf{= u n d e f i n e d\ (also\ known\ as\ 0)}[/tex]
[tex]\large\text{Option E. CANNOT be your POSSIBLE ANSWER}[/tex]
[tex]\boxed{\boxed{\mathsf{Answer:\bf Option\ A. (\dfrac{2}{3})^4} \&\ \bf Option\ D. (\dfrac{4}{9})^2}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Is this a function? Explain with full sentence
[(2,3) (2,4) (2,5) (2,3)]
Answer:
no their is not supposed to be any repeating x's
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
please help y'all no matter what I do I cannot figure this out please help what number would you add to both sides to complete the square in this trinomial x ^ 2 + 6x = -5 and the options are 6 , 9 , 12 and please show how you did it so I can figure out the rest of my homework
Answer:
Im sorry im not sure
Step-by-step explanation:
Is 8/18 closer to 0 1/2 or 1
Answer:
Closer to 1\2
Step-by-step explanation:
half of 18 is 9 and if you add 1 to 8 you get 9 so 8\18 is closer to 1\2
Hope it helps!
Find the difference.
what is 5x^2y^-3 simplified?
Answer:
(5x^2)/(y^3)
Step-by-step explanation:
Answer:
(5x^2)/(y^3)
Step-by-step explanation:
What number could be added to the product of (-7)(-6) so that the sum is equal to 272
Answer:
(-7)(-6)=42
272-42=230
Step-by-step explanation:
230 is the answer
A set of data is summarized by the stem and leaf plot below.
Stem Leaf
1 0 0 2 2 4 5 5 5 6 7 8 8 9 9 9 9
2 0 0 0 3 3 4 5 8 8
3 0 0 1 1 3 4 5 5 5 6 6 6 6 7 7 8 8 8 9 9
4 1 2 2 3 3 3 5 5 6 6 7 8 8 9 9
The value 52 appears _________time(s) in the data set. The value 47 _________appears time(s) in the data set.
Answer:
0 ; 1
Step-by-step explanation:
Given the dataset :
Stem _____ Leaf
1 _______ 0 0 2 2 4 5 5 5 6 7 8 8 9 9 9 9
2 _______0 0 0 3 3 4 5 8 8
3 _______0 0 1 1 3 4 5 5 5 6 6 6 6 7 7 8 8 8 9 9
4 _______ 1 2 2 3 3 3 5 5 6 6 7 8 8 9 9
The value 52 appears 0 times in the dataset
This is because the stem does not contain the digit 5.
The value 47 appears 1 time(s) in the data set ; stem of 4, leaf 7
Please help me with this question
Answer:
1. 3 x 2 = 6 / 4 x 3 = 12 = 6/12 [simplify] = 1/2 thats the first answer, just do how i did it to get the others, its pretty simple
which ofthe following are equalivilent to -7?
-49/-7
0/-7
49/-7
-21/3
21/3
QRINC offered new employees a starting salary of $34,862 in 2013. What would a comparable starting salary have been in 2003?
Complete Question
Table of Annual CPI values
2003-184.00
2004-188.90
2005-195.3
2006-201.6
2007-207.342
2008-215.303
2009-214.537
2010-218.056
2011-224.939
2012-229.594
2013-232.957
2014-236.736
QRINC offered new employees a starting salary of $34,862 in 2013. What would a comparable starting salary have been in 2003?
Answer:
[tex]C=27535.5881128[/tex]
Step-by-step explanation:
From the question we are told that
CPI for 2003(index)=2003-184.00
CPI for 2013(index)=2013-232.957
Starting salary in 2013 at $34,862
Generally comparable starting salary C is given as
[tex]C=\frac{starting salary}{CPI for 2013(index} *CPI for 2003(index)[/tex]
[tex]C=\frac{34,862}{232.957} *184[/tex]
Therefore C the comparable starting salary is givrn to be
[tex]C=27535.5881128[/tex]
[tex]C=27536 appro[/tex]
I need help with solutions
Answer:
10. b 11. b 12. b 13. a 14. b 15. b 16. a 17. a 18. b 19. a 20. a 21. b
Step-by-step explanation:
I'm pretty sure they are all right
please i need help with 4th grade math please write the answer and shiw the solution hownto solve the problem step by step.thank you much appreciated.
Aaron has between 100 and 110 baseball cards in his collection.If he counts his cards 2 at a time,he has 1 card left over.If he counts his cards 5 at a time,he has 2 cards left over . How many cards are in Aaron's collection ?
Answer:
110
Step-by-step explanation:
Answer:
107 cards
Step-by-step explanation:
So if you skip count by 5 up to one hundred, and then add 2, it's still and even number which the skip counting by 2 says won't work. So then skip count by 5 up to 105 and add 2 to get 107. Hope that makes sense! :)
Your friend says that enough information is giving to prove that x=12. Is your friend correct?
Answer:
C. Yes, you can prove that x = 12
Step-by-step explanation:
My friend is correct because by the HL Congruence Theorem, ∆MNP is congruent to ∆MKL. The hypotenuse and leg of one right ∆ is congruent to the hypotenuse and corresponding leg of the other right ∆. So, enough information was given to prove that x = 12.
using the numbers 3, 5, and 8, can you write nine proper fractions and nine improper fractions? You may use each number only once within a fraction.
Answer:
First, we can write a fraction as a/b
Where a is the numerator, and b is the denominator.
A proper fraction is a fraction where the numerator is smaller than the denominator.
Using only the given numbers (only once per fraction), some examples of proper fractions are:
3/5
3/8
5/8
3/85
3/58
5/83
5/38
8/35
8/53
You can see that in all of them the denominator is larger than the numerator.
The improper fractions are those where the numerator is equal or larger than the denominator.
The 9 examples using the given numbers are:
5/3
8/5
8/3
35/8
38/5
53/8
58/3
83/5
85/3
(can u guys help me PLSSSSS ) A company sets sales goals for employees each month.
A: At her current pace, how many items will Kristina sell in 28 days?
B:Is she on track to meet the goal? Explain
Katie's baby took 3 naps. Each nap was of an hour long.
6
How long did the baby nap in all? Move numbers to the blanks to answer the question.
Answer:
18 naps
Step-by-step explanation:
We have the keyword each, so we are multiplying, so our equation is:
3 x 6 = 18
So, Katie's baby napped for 18 hours in all
Answer:
18 is the answer
10. One number is twenty more than eight times another number. The sum of the
numbers is eleven. Find the two numbers.
Answer:
the two numbers are 12 and -1.
Step-by-step explanation:
Let the large number be represented by x and the smaller number by y.
So that;
x = 8y + 20 .................. 1
x + y = 11 ................... 2
From equation 2,
x = 11 - y .......... 3
Substitute equation 3 into equation 1 to have,
11 - y = 8y + 20
11 - 20 = 8y + y
-9 = 9y
divide through by 9 to have,
y = -1
Substitute the value of y in equation 3,
x = 11 - (-1)
= 11 + 1
= 12
x = 12
x = 12, y = -1
The two numbers are 12 and -1.
Add these two expressions … 15.5y - 10.3 and -35.4y + 5
Answer:
-19.9y-5.3
Step-by-step explanation:
For the given fact below, which subsequent true/false statement is true?
Answer:
Step-by-step explanation:
Mel passed the math class.
Mel failed the math class.
Mel likes math.
Mel took math this semester.
Question 15
10 Points
Indicate the most appropriate if-then statement that the English sentence represents:
People 25 years or older do not pay an additional car rental fee.
If a person is 25 years old or older, then the person does not pay an additional car rental fee.
If a person is 25 years old or younger, then the person does not pay an additional car rental fee.
If a person does not need to pay an additional car rental fee, then the person is 25 years old or older.
Unknown
Question 16
10 Points
Given: If X, then Y. If Y, then Z.
Y is true. So:
X is unknown, Z is unknown
X is unknown, Z is true
X is false, Z is true
X is true, Z is true
Question 17
10 Points
Using everyday knowledge, which of the following statements is an if-then statement whose reverse is also correct?
If the TV is unplugged, then the TV will not turn on.
If the light bulb was recently on, then the light bulb is hot.
If an ambulance has emergency lights on, then cars on the road pull over.
If the wind is blowing, then the weather is chilly.
Question 18
10 Points
Using everyday knowledge, indicate whether the if-then statements are correct forward-only or both forward and reverse.
Statement 1: If Bo is Mel’s sibling, then Mel is Bo’s sibling.
/ Statement 2: If the sprinklers are on, then the grass is wet.
Forward-only / Forward-only
Forward-only / Forward and reverse
Forward and reverse / Forward-only
Forward and reverse / Forward and reverse
Question 19
10 Points
Given: If A AND B, then C. Given: The if-then statement's reverse is also correct. Given A is false, B is false. What is C?
True
False
Both true and false
Unknown
Question 20
10 Points
What pages will be favored for the given search? Search terms: Michael OR Jordan
Pages about Michael Jordan
Pages about Michael, plus pages about OR, plus pages about Jordan
Pages about Michael, plus pages about Jordan
Pages about Michael, plus pages about Jordan, plus pages about both
Question 21
10 Points
The rules for a soccer player receiving a yellow card are as follows:
IF a player
delays-restart
OR (dissents-by-word OR dissents-by-action)
OR ((enters OR re-enters OR leaves) AND NOT (had-permission))
OR ((corner-kick OR free-kick OR throw-in) AND fails-respect-distance)
OR commits-persistence-offences
THEN the player should receive a yellow card
A player leaves the field with permission. Later, the player re-enters the field without permission. The player:
Should receive a yellow card
Should not receive a yellow card
Should receive a yellow card only if the player also delays the restart
Should receive a yellow card only if committing all the other 4 offenses too
Question 22
10 Points
What percentage of people partake in physical activity and abstain from smoking, but do not eat fruit and vegetables?
1%
5%
10%
14%
Question 23
10 Points
Given the true/false statements are true (facts), select the best logical induction made from those statements:
Mo likes oranges. Jai likes oranges. Ben likes oranges.
People don't like apples
People only like oranges
People like oranges
People like fruit
Question 24
10 Points
Given a function described as the table below, what is y when x is 2?
0
1
2
4
Question 25
10 Points
Given a function described as the graph below, what is y when x is 3?
1
3
6
10
Question 26
10 Points
The figure below shows total costs for three gym memberships. Which is the most accurate statement?
Of the 3 memberships, Monthly is cheapest for under 5 months, while Standard is cheapest for over 10 months.
Platinum is costliest for any duration
Monthly is cheapest for any duration except for 5-10 months
Standard is cheapest for a duration between 5-10 months; other plans are cheaper for shorter or longer durations.
Question 27
10 Points
The figure shows estimated medical costs versus what a user actually pays for three health insurance plans with different deductibles. For which plan does the user pay the least for estimated medical costs of $4,000?
$500 deductible plan
$1,000 deductible plan
$2,000 deductible plan
The user pays the same for all three plans.
Question 28
10 Points
What is the value of cell C2?
2
24
50
64
Question 29
10 Points
What formula should be entered in A3 to compute A1 divided by C3?
=A3/A1
=A1/C3
=A1*C3
=C3/A1
Question 30
10 Points
Based on the vertical bar chart below, in which of the following months were approximately 10% of professional European soccer players born?
January
April
October
December
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Details & Information
Assessment due date
2/2/21, 1:59 AM (EST)
Goals & standards
Aligned with 2 goals
Attempts
1 attempt left
Grading
Maximum points
300 points
Description
Complete the midterm exam. You have one attempt at the exam. So, be sure you review all previous course
Hence , correct option is Option B i.e. Mel did pass the class.
How to Solve:The statement says that Mel scored C+ is Chemistry.
We will approach our answer logically by examining each option.
Option A says Mel does not like chemistry. This Cannot be true because maybe Mel likes chemistry but he just has scored less or maybe this C+ is an achievement for Mel.
Option B says that Mel did pass the class. This is possible because a student is considered as not qualified if he/she scores D or below, but Mel has scored C+ which is above the qualifying criteria.
Option C says that Mel did not achieve a passing grade for the class which is false because C+ is a passing grade scored by Mel.
Option D is Mel took math this semester which doesn't makes any sense.
hence, Option B is correct.
Learn more about Assertion and Reason at:
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PLEASEE HELP IM BEGGING YOU
Answer:
1 7/12
Step-by-step explanation:
Its 1 7
/12
Answer:
1 7/12
Step-by-step explanation:
Hope this helps!
Brainiest?