A coach uses a new technique in training middle distance runners.The times for 9 different athletes to run 800 metres before and after this training are shown below.
Construct a 99% confidence interval for the mean difference of the "before" minus "after" times if
(before - after) = 1.222 and
= 1.826

Question

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

Construct a 99% confidence interval for the mean difference of the "before" minus "after" times if A coach uses a new technique in training middle distance runners.The times for 9 different athletes to run 800 metres before and after this training are shown below. Construct a 99% confidence interval for the mean difference of the before minus after times if (before - after) = 1.222 and <sub> </sub>= 1.826 A) (-0.54,2.98) B) (-6.42,8.87) C) (-0.85,3.29) D) (-0.76,3.20) E) (-0.82,3.26)

(before - after) = 1.222 and A coach uses a new technique in training middle distance runners.The times for 9 different athletes to run 800 metres before and after this training are shown below. Construct a 99% confidence interval for the mean difference of the before minus after times if (before - after) = 1.222 and <sub> </sub>= 1.826 A) (-0.54,2.98) B) (-6.42,8.87) C) (-0.85,3.29) D) (-0.76,3.20) E) (-0.82,3.26)

= 1.826

Quizplus · Accepted Answer

The Answer is E

A Coach Uses a New Technique in Training Middle Distance