PLEASE HELP



Trials in an experiment with a polygraph include 98 results that include 23 cases of wrong results and 75 cases of correct results. Use a 0.05 significance level to test the claim that such polygraph results are correct less than ​% of the time. Identify the null​ hypothesis, alternative​ hypothesis, test​ statistic, P-value, conclusion about the null​ hypothesis, and final conclusion that addresses the original claim. Use the​ P-value method. Use the normal distribution as an approximation of the binomial distribution.

Answers

Answer 1
I don’t really know let me ask my friends 1

Related Questions

Find the value of x 6x+2-2x=3x+14-x

Answers

Step-by-step explanation:

x will equal 6

hope this helps bro if u need the explanation I'll explain to u if needed

6x + 2 - 2x = 3x + 14 - x

6x - 2x + 2 = 3x - x + 14

4x + 2 = 2x + 14

4x - 2x = 14 - 2

2x = 12

x = 12/2

x = 6

For 15 please help
will mark as branliest

Answers

Answer:

c

Step-by-step explanation:

you spin the spinner twice what is the probability of landing on a 6 and then landing on a number greater than 4
p(6,then>4)=
a)1/4
b)1/6
c)1/8
d)1/10

Answers

it would be c or b, you’re welcome!

Need help ASAP!!!The measures of angles of a triangle are shown in the figure below.Solve for x

Answers

Answer:

54

Step-by-step explanation:

90 + 36 = 126

180-126= 54

If the Age of a tree was predicted to be 800 years old using the regression equation, y = 4.39x - 6.77, what did the Diameter have to be?

Answers

Answer:125cm

Step-by-step explanation:

(6e-3f-3/4) in a equivalent expression​

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Answer:

Step-by-step explanation:

(6e-3f-3/4) contains two terms which do not involve fractions and one fractional term (3/4).

We can safely remove the parentheses.  Then:

(6e-3f-3/4)  =>  6e - 3f - 3/4

That is "an equivalent expression."

We could go further and create one equivalent fraction.  Multiply the first two terms by 4/4, obtaining:

24e    12f       3           24e - 12f - 3             3(8e - 4f - 1

------ - ------ - -----  =>  ----------------------  =>  -------------------

  4       4         4                     4                             4

Other equivalent expressions exist here.

i need help with this​

Answers

Answer:

x w1ll b3  with the 4x+19

Step-by-step explanation:

What is 25% increase of 12

Answers

Answer:

15 or 3

Step-by-step explanation:

multiply 12 by .25 and you will get 3. that is 25% of 12. add 3 you will get 15.

I didn't know if you wanted to know how much it increased or final answer.

the rate of change of function g from x=-3 to x=-1 is the same as it is from x=-1 to x=1. Is function g linear, quadratic or exponential?

Answers

Answer:

We conclude that we conclude that the rate of change of a linear function g from x=-3 to x=-1 is the same as it is from x=-1 to x=1.

Thus, the function is linear.

Step-by-step explanation:

We know that the rate of change remains constant for a linear function.

In other words, the rate of change does not change for the entire domain of a linear function.

Comparing with the slope-intercept form

The slope-intercept form of a linear function is

[tex]y = mx+b[/tex]

where m is the slope or rate of change

For example, considering the linear function

[tex]y = 6x + 4[/tex]

Then the average rate of change is 6 over any interval selected.

Therefore, we conclude that we conclude that the rate of change of a linear function g from x=-3 to x=-1 is the same as it is from x=-1 to x=1.

Thus, the function is linear.

The density curve below represents the number of minutes Anastasia takes to go from her chemistry class to her Spanish class. у x 1 3 4 N What is the height of the density curve?

Answers

Answer:

0.5

Step-by-step explanation:

Answer:

0.5

Step-by-step explanation:

What is the solution of the equation 70 = 1.4y ?

Need this answer ASAP

Answers

Answer:

y=50

Step-by-step explanation:

[tex]70 = 1.4y \\ \div 1.4 \: \: \: \: \: \: \: \: \: \: \: \div 1.4 \\ \\ 50 = y[/tex]

just divide 1.4 on both sides

there are 9 computers and 75 students what is the unit rate of students to computers

Answers

Answer:

8.333333..... on and on

Step-by-step explanation:

8 students to each computer

PLEASE I NEED HELP WITH MATH!

Answers

Answer:

m<x= 53

Step-by-step explanation:

m<x = m<y

so...

all you do is 180-128= 53

because m<z = m<y too

and the m<z+128=180

I NEED HELP! WHO EVER ANSWERS FIRST I WILL MARK BRAINLIEST

Answers

Answer:

54

Step-by-step explanation:


Which three lengths could be the lengths of the sides of a triangle?
A. 6 cm, 23 cm, 11 cm
B. 10cm, 15cm, 24cm
C. 22 cm, 6 cm, 6 cm
D. 15 cm, 9 cm, 24 cm

Answers

Answer:

D. 15 cm, 9 cm, 24 cm

Step-by-step explanation:

The three lengths that could be the lengths of the sides of a triangle, must satisfy the following condition;

---sum of any two smaller sides chosen must be equal to the third side.

Test option A : 6 cm + 11 cm = 17 cm  ( 17 cm ≠ 23 cm)

Test option B: 10 cm + 15 cm = 25 cm (25 cm ≠ 24 cm)

Test option C: 6 cm + 6 cm = 12 cm (12 cm ≠ 22 cm)

Test option D: 15 cm + 9 cm = 24 cm (24 cm = 24 cm) ---correct option.

Thus, the three lengths that could be the lengths of the sides of a triangle are 15 cm, 9 cm, and 24 cm

What is an equation in point slope form of the line that passes through the point (8,5) and has a slope -7?

Answers

What the heck is a slope. Am nvm snail -7=99

30 is 5/6 of what number?

Answers

Answer:

12

Step-by-step explanation: because 30 divided by 5/6 gives you your simplified answer of 12 when you switch over the incomplete progress of elimination when overwriting your decimal place so , that gives you 12

The solution for a number that satisfies the condition ''5/6 times a number is 30.'' is, 12

We have to give that,

To find a number which is 5/6 times a number is 30.

Now, let us assume that,

A number = x

Hence, it can be written as,

⇒ [tex]\dfrac{5}{6} \times x = 30[/tex]

Solve for x,

Multiply by 6 on both sides,

⇒ [tex]5x = 10 \times 6[/tex]

⇒ [tex]5x = 60[/tex]

Divide 5 on both sides,

⇒ [tex]x = \dfrac{60}{5}[/tex]

Simplify it,

⇒ [tex]x = 12[/tex]

Therefore, the solution is, x = 12

Learn more about the multiplication visit:

brainly.com/question/10873737

#SPJ6

What is 2.5 repeating written as a simplified improper fraction?

Answers

Answer:

2.5 equals 23 /9  as an improper fraction or 25 /9  as a mixed number.

Step-by-step explanation:

send helpppppppppppp

Answers

Answer:

right bottom

Step-by-step explanation:

9) Eva can knit 2/5 of a scarf in an hour. Her sister takes 3/4 of the time she
takes. How long will her sister take to knit 8 similar scarves?

Answers

I don’t even know sorry

The time taken by sister of Eva to knit 8 similar scarves, if Eva can knit 2/5 of a scarf in an hour. Her sister takes 3/4 of the time she takes is 2.4 hours.

What is the ratio?

It is the contrast of two different quantities. For instance, if your father weighs 90 kg, and you weigh 30 kg, the weight ratio is 1:3.

Given:

Eva can knit 2/5 of a scarf in an hour. Her sister takes 3/4 of the time she takes,

Calculate the time taken by the sister of Eva as shown below,

The time taken by the sister to knit a scarf = 3 / 4 × 2 / 5 hours

The time taken by the sister to knit 8 scarves = 3 / 10 × 8 hours

The time taken by the sister to knit 8 scarves = 2.4 hours

To know more about Ratios:

https://brainly.com/question/13419413

#SPJ2

The square below represents one whole. Express the shaded area as a fraction, a decimal, and a percent of the whole. Fraction: Decimal: Percent: %​

Answers

Answer:

Fraction = [tex]\frac{19}{50}[/tex]

Decimal = 0.38

Percent = 38%

Step-by-step explanation:

Number of shaded rectangles = 38

Total number of rectangles = 100

Fraction represented by the shaded area = [tex]\frac{\text{Number of blocks shaded}}{\text{Total number of blocks}}[/tex]

                                                                     = [tex]\frac{38}{100}[/tex]

                                                                     = [tex]\frac{19\times 2}{50\times 2}[/tex]

                                                                     = [tex]\frac{19}{50}[/tex]

Decimal form of the shaded area = [tex]\frac{38}{100}[/tex] =  0.38

Percent of the shaded area = [tex]\frac{38}{100}[/tex] = 38%

Answer:

Fraction =

Decimal = 0.38

Percent = 38%

Step-by-step explanation:

Number of shaded rectangles = 38

Total number of rectangles = 100

Fraction represented by the shaded area =

                                                                    =

                                                                    =

                                                                    =

The decimal form of the shaded area =  =  0.38

Percent of the shaded area =  = 38%

The U.S. Department of Agriculture claims that the mean consumption of coffee by a person in the United States is 24.2 gallons per year. A random sample of 101 people in the United States shows that the mean coffee consumption is 23.5 gallons per year with a standard deviation of 3.2 gallons. At α=0.05, can you reject the claim? Using a P-value, evaluate the claim. Using Rejection Regions for a z-test, evaluate the claim.

Answers

Answer:

The decision rule is  

Reject the null hypothesis  

The conclusion is  

There is sufficient evidence to reject the claim  

Step-by-step explanation:

From the question we are told that

   The population mean is  [tex]\mu = 24.2 \ gallons \ per \ year[/tex]

    The sample size is  n  =  101

     The sample mean is  [tex]\= x = 23.5 \ gallons\ per\ year[/tex]

     The standard deviation is  [tex]\sigma = 3.2 \ gallons[/tex]

The null hypothesis is  [tex]H_o : \mu = 24.2[/tex]

 The alternative hypothesis is [tex]H_a : \mu \ne 24.2[/tex]

Generally the test statistics is mathematically represented as    

               [tex]z = \frac{ \= x - \mu }{ \frac{\sigma }{ \sqrt{n} } }[/tex]

=>             [tex]z = \frac{ 23.5 - 24.2 }{ \frac{ 3.2}{ \sqrt{ 101} } }[/tex]  

=>             [tex]z = -2.198[/tex]

From the z table  the area under the normal curve to the left corresponding to    -2.198  is  

         [tex]P(Z < -2.198 ) = 0.013975[/tex]

Gnerally the  p-value is mathematically represented as

         [tex]p-value = 0.013975 * 2[/tex]

=>      [tex]p-value = 0.02795[/tex]

From the value obtained we have that  [tex]p-value \ < \ \alpha[/tex] hence  

The decision rule is  

Reject the null hypothesis  

The conclusion is  

There is sufficient evidence to reject the claim  

Using the Rejection Regions for a z-test method

Generally from the z table  the critical value  of [tex]\frac{\alpha }{2}[/tex]  is  

     [tex]z_{critical} = \pm 1.96[/tex]

Not we are using  [tex]\frac{\alpha }{2}[/tex]  because it is a two - tailed test

   Now comparing the critical value and the test statistics we see that the

region covered by  the test statistics (i.e [tex]2.198 < z < -2.198[/tex])   is greater than the region covered by  the critical value  (i.e [tex]1.96 < z < -1.96[/tex])

Hence

The decision rule is  

Reject the null hypothesis  

The conclusion is  

There is sufficient evidence to reject the claim  

URGENT

6. Given a line with slope m=-2 that passes through the point (-3, 4), find the equation of
in standard form.

A. 2x + y - 2 = 0
B.2x -y-2 = 0
C. 2x + y + 2 = 0
D.y = 2x + 2​

Answers

Answer:

first write the equation in point-slope form

y - 4 = -2 (x - (-3)) (then, solve the equation to get your answer)

y -4 = -2 (x +3) (use the distributive property)

y - 4 = -2x -6  (add 6 to both sides)

y +2 =-2x (add 2x to both sides)

2x +y +2= 0 (this is your answer)

A light bulb consumes 9900 watt-hours in 5 days and 12 hours. How many watt-hours does it consume per day?

Answers

5 days and 12 hours = 132 hours

9900 total watts / 132 hours = 75 watts per hour

Since the light bulb consumes 75 watts an hour, we need to multiply 75 watts by 24 hours, to figure out how many watts are consumed in a day.

75 watts per hour x 24 hours = 1,800 watt-hours per day

Profit is the amount of money that remains after all expenses of a project have been paid. The year has just​ ended, and Ajax​ Construction's owner is anxious to find out if the company had a profitable year. The company was awarded five contracts totaling​ $7,435,000. The costs associated with each project​ were: Project​ 1: $1,245,000 Project​ 2: $985,689 Project​ 3: $1,723,000 Project​ 4: $2,567,054 Project​ 5: $633,768 How much profit did the company​ earn?

Answers

Answer:

the Profit earned by the company is $280,489

Step-by-step explanation:

Total Cost of 5 projects awarded = $7,435,000

Cost of Project​ 1 = $1,245,000

Cost of Project​ 2 = $985,689

Cost of  Project​ 3 = $1,723,000

Cost of Project​ 4 = $2,567,054

Cost of Project​ 5 = $633,768

We need to find the profit earned by the company.

First we need to find Total cost spent on all 5 projects.

It can be found by adding cost spent on all projects.

Total cost spent on all 5 projects = Cost of Project 1 + Cost of Project 2 + Cost of Project 3 + Cost of Project 4 + Cost of Project 5

Total cost spent on all 5 projects = $1,245,000+ $985,689 + $1,723,000+ $2,567,054 + $633,768

Total cost spent on all 5 projects = $7,154,511

Now we can calculate profit earned using formula:

Profit earned = Total Cost of 5 projects awarded - Total cost spent on all 5 projects

Profit earned = $7,435,000 - $7,154,511

Profit earned = $1,280,489

So, the Profit earned by the company is $280,489

Point J (-8, -12) is reflected over the x-axis. Where is J?​

Answers

Answer:

2,5

Step-by-step explanation:

32, 25, 18, 11..... Next 3...

18, 25, 32
4, -3, -10
7, 14, 21
39, 46, 53​

Answers

4, -3 , -10

Each time is subtracting by 7

Answer:

you subtract by 7 everytime

Choices would be
x = -0.4

x = 10

x = 2

X = -10

Answers

Answer:

The first one is

The second one is -

The third one is -.

The last one is

Step-by-step explanation:

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Thank you so much and have a good day

please help will mark BRAINLIEST *attach pic of work pls*

Answers

Answer:

Step-by-step explanation:

Given:

E is the midpoint of segment AC.

AE ≅ EC

∠BAE ≅ ∠ECD

To prove:

ΔAEB ≅ ΔCED

                    Statements                          Reasons

1). AE ≅ EC                                          1). Given

2). ∠BAE ≅ ∠ECD                              2). Given

3). ∠AEB ≅ ∠CED                              3). Vertically opposite angles theorem

4). ΔAEB ≅ ΔCED                              4). By ASA postulate of congruence

"what is 3/8 divided by 6? give your answer as a fraction in the simplest form"

Answers

Step-by-step explanation:

[tex]{:}\hookrightarrow\sf \dfrac {3}{\dfrac {8}{6}}[/tex]

[tex]{:}\hookrightarrow\sf \dfrac {3}{8}\times \dfrac {1}{6}[/tex]

[tex]{:}\hookrightarrow\sf \dfrac {3}{8\times 6}[/tex]

[tex]{:}\hookrightarrow\sf \cancel {\dfrac {3}{48}}[/tex]

[tex]{:}\hookrightarrow\sf \dfrac {1}{16}[/tex]

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