An article in medicine and science in sports and exercise ["maximal leg-strength training improves cycling economy in previously untrained men" (2005, vol. 37, pp. 131–136)] studied cycling performance before and after 8 weeks of leg-strength training. seven previously untrained males performed leg-strength training 3 days per week for 8 weeks (with four sets of five replications at 85% of one repetition maximum). peak power during incremental cycling increased to a mean of 315 watts with a standard deviation of 16 watts. construct a 95% confidence interval for the mean peak power after training.

[300.202 , 329.798]

Step-by-step explanation:

The 95% confidence interval is given by the interval

where

is the sample mean  

s is the sample standard deviation  

n is the sample size (n = 7)  

is the 0.05 (5%) upper critical value for the Student's t-distribution with 6 degrees of freedom (sample size -1), which is an approximation to the Normal distribution for small samples (n<30).

Either by using a table or the computer, we find  

and our 95% confidence interval is

good luck!

cutie~

a thesis statement is not a fact or a question

step-by-step explanation:

a thesis statement is a topic it is not a fact or a question