A school district has decided that students in grades 7 through 12 should receive 400 minutes of physical education every 10 school days. A gym teacher at one of the schools believes that his students are not meeting this criterion. She randomly selects 50 students and it is found that her students have a mean of 385 minutes and a standard deviation of 55 minutes. Is this evidence to support her claim?

Answers

Answer 1

Answer:

Yes

Step-by-step explanation:

Based on the information provided we can say that Yes, this is enough evidence to support her claim. Since the 50 students were randomly selected and the physical education criteria applies to all of the students in that grade range then these 50 students perfectly represent the total population. That being the case, the results gathered to show that with a standard deviation of 55 minutes some students are surpassing the requirement by very little but others are falling very far from that requirement. When it is a requirement for all of the students in that grade range. Therefore, it is enough to support her claim.


Related Questions

Problem
Choose the inequality that represents the following graph. 32 points

Answers

It would be D because the circle is closed so it’s less than or equal to

Answer:

D

Step-by-step explanation:

cause its going bigger, but it also has 0 in the line so it could have 0 in it. So its D

Select the correct answer.


Which image shows the correct position of on the number line?

A.
A
B.
B
C.
C
D.
D

Answers

Answer:

i think A,B,C

Step-by-step explanation:

Answer:

yeah ABC

Step-by-step explanation:

i wrong this is bs if im wromg

As a cold front moved in, the temperature dropped 3 degrees each hour for 6 hours. What was the total temperature change after the 6 hours?

Answers

Answer:18°

Step-by-step explanation:

6x3=18

10. Pure Water Supply Co. distributes small cone shaped paper cups to dispense near water coolers. The diameter of each cup is 3 inches and the slant height of each cup is 3.5 inches. What is the approximate height of the cup? 3 in. ?​

Answers

Answer:

159.2cm

Step-by-step explanation:

The volume of cone is given by :-

Given: The diameter of paper cups = 8 cm

Thus, the radius of paper cup (r)=

The height of paper cup (h)= 9.5 cm

Now, the volume of paper cup will be :-

Hence, the  best approximation for the volume of the paper cup

159.2 cm hope this helps

Find factors of polynomial
A) 244 + 183
B) 4 + x
C) 82 − 56 + 7 − 49
plz answer properly
I will mark the person brainliest who answers properly

Answers

Step-by-step explanation:

the c is true

❤❤❤❤❤

If x=−1 and y=−3, then 5(x2−7+y)=

Answers

Answer:

-60

Step-by-step explanation:

5(-1 times 2 -7 -3) = 60

The value of [tex]5(x^2-7+y)[/tex] at [tex]x=-1,y=-3[/tex] is [tex]-45[/tex].

Important information:

The given expression is [tex]5(x^2-7+y)[/tex].The given values are [tex]x=-1,y=-3[/tex].Value of expression:

Substitute [tex]x=-1,y=-3[/tex] in the given expression.

[tex]5((-1)^2-7+(-3))=5(1-7-3)[/tex]

[tex]5((-1)^2-7+(-3))=5(-9)[/tex]

[tex]5((-1)^2-7+(-3))=-45[/tex]

Therefore, the value of [tex]5(x^2-7+y)[/tex] at [tex]x=-1,y=-3[/tex] is [tex]-45[/tex].

Find out more about 'Value of expression' here:

https://brainly.com/question/556937

It took Sharon 1 hour and 45 minutes to pick 3 1/2 pounds of raspberries. At what unit rate did Sharon pick raspberries?

A. 1/2 pound per hour
B. 1 3/4 pounds per hour
C. 2 pounds per hour
D. 2 1/4 pounds per hour

Answers

Answer:2 pounds per hour

Step-by-step explanation:

I just did it

Answer:

2 pounds per hour

Step-by-step explanation:

Each of the numbers 0, 2, 4, 6, 8, 10, 12, and 14 is written on a separate sheet of paper and placed into a box. One piece of paper is selected at random. Find the probability that the piece of paper selected contains the number 8 or a number less than 12.

Answers

Answer:

For the second, all numbers less than 12, that would be 87.5%

Step-by-step explanation:

There are eight numbers. 100 divided by 8 is 12.5. 12.5 multiplied by 7 is 87.5.

What is h(p)=(p3+4p2-2) in distributive property

Answers

Let's solve for h.
h
p
=
p
3
+
4
p
2

2
Step 1: Divide both sides by p.
h
p
p
=
p
3
+
4
p
2

2
p
h
=
p
3
+
4
p
2

2
p
Answer:
h
=
p
3
+
4
p
2

2
p

Expand and simplify
(4 + 2)(6-12)
Give your answer in the form b+cV2

Answers

Note: Consider the expression is [tex](4+\sqrt{2})(6-\sqrt{2})[/tex].

Given:

[tex](4+\sqrt{2})(6-\sqrt{2})[/tex]

To find:

The value of given expression in the form of [tex]b+c\sqrt{2}[/tex].

Solution:

We have,

[tex](4+\sqrt{2})(6-\sqrt{2})[/tex]

Using distributive property, we get

[tex]=4(6-\sqrt{2})+\sqrt{2}(6-\sqrt{2})[/tex]

[tex]=4(6)+4(-\sqrt{2})+\sqrt{2}(6)+\sqrt{2}(-\sqrt{2})[/tex]

[tex]=24-4\sqrt{2}+6\sqrt{2}-2[/tex]

On combining like terms, we get

[tex]=(24-2)+(6\sqrt{2}-4\sqrt{2})[/tex]

[tex]=22+2\sqrt{2}[/tex]

On comparing with [tex]b+c\sqrt{2}[/tex], we get

[tex]a=22,b=2[/tex]

Therefore, the required form is [tex]22+2\sqrt{2}[/tex].

K is between J and L. JK = 3x – 5, and KL = 2x + 1. IfJL = 16, what is JK?
A. 7
B. 8
C. 9
D. 13

Answers

Answer:

If JL = 16, we will get JK = 7

Option A is correct option.

Step-by-step explanation:

We are given:

K is between J and L

JK = 3x – 5, and KL = 2x + 1.

IfJL = 16, what is JK

We know that K is between J and L it means it divides JL into JK and KL equally or we can say that adding JK and KL we can get JL

So, We can write:

[tex]JL = JK + KL\\16=3x-5+2x+1[/tex]

Solving the expression we can find first value of x and then value of JK

[tex]16=3x-5+2x+1\\16=5x-4\\16+4=5x\\20=5x\\x=\frac{20}{5}\\x=4[/tex]

So, we get x = 4

Now, put the value of x in JK=3x-5 to get value of JK

[tex]JK = 3x-5\\JK=3(4)-5\\JK = 12-5\\JK=7[/tex]

So, if JL = 16, we will get JK = 7

Option A is correct option.

What is the opposite of 6.6

-6.8
6.8

Answers

Answer:

-6.6

Step-by-step explanation:

I don't really understand the question but I believe it is correct.

have a good day

6.7 is the answer u welcome

help me pls ! if you do l give you the brainiest

Answers

Answer:

a) 3x-7y and -7y+3x

Hope it will help you......

it said in the question how do we solve of the side b​

Answers

Is this your final are you taking a test

What is the solution to the system of equations below?
y=-x+6 and y-x-6

O no solution
O infinitely many solutions
O (-18, 12)
O (18, 0)

Answers

Answer:

O (-18, 12)

Step-by-step explanation:

brainiest plz

Which of the following expression has a terminating decimal?

6556 divided by 55
9565 divided by 11
7986 divided by 18
4546 divided by 33​

Answers

Answer:

1.# = 119.2 2.# = 869.545454545 3.# = 443.66666666 4.# = 13501.3939394

Step-by-step explanation:

i don't know about the 2 one and 3 and 4 one that came up a very big number. I used a calculator though.exactly way you tired to tipe it in sorry it took so long to answer the problem!!!.

Six Sigma refers to achieving a process variability so small that the design specifications represent ___ standard deviations above and below the process mean.

Answers

Answer:

six

Step-by-step explanation:

Six sigma is defined as the method or a set of techniques that provides the provides the organization tools and techniques to improve the capability and and be efficient of their business process. It is a concept of process improvement.

It refers to the achieving of a process variability very small so that the design specification represents six standard deviations which is above as well as below the process mean.

Select all equivalent expressions from the list.

8(7x-6)

•15x-6
•56x-48
•56x-6
•8•7x-8•6

Answers

Answer:

It should be 56x-48 and (8*7)x-(8*6)

Step-by-step explanation:

what is the factored from for -2r-6 PLEASE HELP! WILL MARK BRAINLIEST

Answers

Answer:

-2(r+3)

Step-by-step explanation:

Answer:

i think it's the first one

4. How do we divide polynomials using synthetic division?

Answers

Answer:

here

Step-by-step explanation:

Step 1 : set the denominator equal to zero to find the number to put in the division box. Next, make sure the numerator is written in descending order.

Step 2 : Once the problem is set up correctly, bring the leading coefficient (first number) straight down.

Step 3 : Multiply the number in the division box with the number you brought down and put the result in the next column.

Step 4 : Add the two numbers together and write the result in the bottom of the row.

Step 5 : Repeat steps 3 and 4 until you reach the end of the problem.

Step 6 : Write the final answer. The final answer is made up of the numbers in the bottom row with the last number being the remainder and the remainder must be written as a fraction.

If Delta AGM sim Delta KXD , find the value of x.

Answers

Here’s all my work! Sorry my handwriting isn’t good

For ΔKXD, x = 21

Similar triangles:

"The triangles that have corresponding sides in proportion to each other and corresponding angles are equal."

For given question,

ΔAGM is similar to ΔKXD

This means,

[tex]\frac{AG}{KX} = \frac{GM}{XD} = \frac{AM}{KD}[/tex]

Consider,

⇒ [tex]\frac{AG}{KX} = \frac{GM}{XD}[/tex]

⇒ [tex]\frac{32}{x+3} = \frac{36}{x+6}[/tex]

⇒ [tex]32\times (x+6) = 36\times (x+3)[/tex]

⇒ [tex]32x+192=36x+108[/tex]

⇒ [tex]4x = 84[/tex]

x = 21

Learn more about similar triangles here:

https://brainly.com/question/14965331

#SPJ2

SOMEONE HELP PLZ!!!!!! ​

Answers

Answer:b

Step-by-step explanation:

Convert 9.63x10^-3 into Standard form ASAP!

Answers

Answer:

= .00963

Step-by-step explanation:

Move the decimal 3 places to the left.

= .00963

Really need help on this math question! “Jill is draining her pool before winter arrives.
Initially the pool has 2000 gallons of water.
The pool is draining at a rate of 8 gallons per minute.
Write a function to model this situation.”

Answers

Answer:

f(x)=2000-8x

Step-by-step explanation:

2000 is initial amount that gets subtracted

8x is the amount of gallons being siphoned out, where x is t, or minutes.

brainliest for the correct answer

Answers

Answer:

2250 m

Step-by-step explanation:

30 cm = 0.3 m

1 : 75  :: 0.3 : x

Product of extremes = product of means

1 *x = 75 * 0.30

   x = 75 * 0.30

 x = 22.5 m

Answer:

22.5 m

Step-by-step explanation:

Convert to meters

.3 / x = 1/75

multiply .3 by 75 to get 22.5 m

The bottle is completely full at 11:40 a.m.


Which statements help explain this result? Check all that apply.

The bottle was 1/2 full at 11:35 a.m. and doubled again after 5 minutes.
The bottle was 1/4 full at 11:30 a.m. and doubled twice after 10 minutes.
The bottle was 1/2 full at 11:35 a.m. and more bacteria were added to fill the bottle.
Exponential growth involves a constant multiplicative rate of change.
Exponential growth involves a constant additive rate of change.

Answers

Answer:

A,B,D

Step-by-step explanation:

Answer:

A,B,D

Step-by-step explanation:

HELP ME 50 POINTS RN.

Answers

Answer:

the last one. hope I help u

Answer:

S<30

need explain that?

What is 149/15 as a mixed number?

Answers

Answer:

its an improper

mixed : 9 14/15

Step-by-step explanation:

its a mixed number if the number at the tops in the limit and there is a number at the side that represents whole number(s)

Answer:

the answer is 9 14/15

Step-by-step explanation:

Step 1 - Find Whole Number

Calculate out how many times the denominator goes into the numerator. To do that, divide 149 by 15 and keep only what is to the left of the decimal point:

149 / 15 = 9.9333 = 9

Step 2 - Find New Numerator

Multiply the answer from Step 1 by the denominator and deduct that from the original numerator.

149 - (15 x 9) = 14

Step 3 - Get Solution

Keep the original denominator and use the answers from Step 1 and Step 2 to get the answer. 149/15 as a mixed number is:

Can someone Help me I'm Stuck on these three Questions
Z+(-7)=-8
13=Z+18
12=T+3
Explain your answer
Thanks For the Help:)

Answers

Answer:

1.) z = -1

2.) z = -5

3.) t = 9

Step-by-step explanation:

z + (-7) = -8

=> add 7 to both sides

z = -1

13 = z + 18

=> subtract 18 from both sides

-5 = z

12 = t + 3

=> subtract 3 from both sides

9 = t

which COULD be the new coordinates of point D?

Answers

Answer:

It is B

Step-by-step explanation:

4, -4 is longer than 2 units

-2, -2 is longer than 2 units

-1, -4 is longer than 2 units

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