stat Homework 12 - 99168

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  • Posted on: Sun 12 Nov, 2017
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Question 1

1.      

A coach uses a new technique to train gymnasts. Seven gymnasts were randomly 
selected and their competition scores were recorded before and after the training.

The results are shown below:

Subject:

  A  

   B

  C

  D

  E

  F

  G

Before

 9.7

 9.7

 9.5

 9.6

9.7

 9.4

 9.7

After

 9.8

 9.9

 9.5

 9.5

 9.8

 9.7

 9.5



Suppose that an appropriate hypothesis test will be conducted to test 
the claim that  the training technique is effective in raising scores. 

What is the p-value for the test? 

 

 

0.2064

 

0.2427   

 

0.4128  

 

0.2419 

1 points  

Question 2

1.      

A coach uses a new technique to train gymnasts. Seven gymnasts were randomly 
selected and their competition scores were recorded before and after the training.

The results are shown below:

Subject:

  A  

   B

  C

  D

  E

  F

  G

Before

 9.7

 9.7

 9.5

 9.6

9.7

 9.4

 9.7

After

 9.8

 9.9

 9.5

 9.5

 9.8

 9.7

 9.5



Suppose that an appropriate hypothesis test will be conducted to test 
the claim that the training technique is effective in raising scores. 

What is the test statistic for the test? 

 

 

-0.88

 

-0.72  

 

 0.72   
 

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