Question

A coach uses a new technique in training middle distance runners. The times for 9 different...

A coach uses a new technique in training middle distance runners. The times for 9 different athletes to run 800 meters before and after this training are shown below.

Athlete A B C D E F G H I
Time before training 115.2 120.9 108.0 112.4 107.5 119.1 121.3 110.8 122.3
Time after training 116.0 119.1 105.1 111.9 109.1 115.2 118.5 110.7 120.9

a. Construct a 99% confidence interval for the mean difference in time before and after training.

<differenceintime<   Keep your values in 2 decimal places.

b. What can youconclude from the confidence interval? Hint:Is trainging effective? Why?

  

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Use the traditional method of hypothesis testing to test thegiven claim about the means of...
Use the traditional method of hypothesis testing to test the given claim about the means of two populations. Assume that two dependent samples have been randomly selected from normally distributed populations.5) A coach uses a new technique in training middle distance runners. The times for 8 different athletes to run 800 meters before and after this training are shown below. Athlete A B C D E F G H Time before training (seconds) 116 115.9 118.6 109.7 111.5 113 119...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT