A study was conducted to find out if a new exercise program was more effective t

Question

A study was conducted to find out if a new exercise program was more effective than an old one at improving cardiovascular fitness. Subjects were randomly selected to participate and then randomly assigned to one of the two programs. After six months of exercising, they were given a score based on their fitness performance. Scores ranged from 19 to 73, with higher scores indicating higher performance. Which of the following hypothesis tests would be best for this study?

A) Paired data test

B) Independent sample test

C) Test of two proportions

D) Chi-squared test of independence

E) Hypothesis test for regression

Explanation / Answer

Given study was conducted to find out if a new exercise program was more effective than an old one at improving cardiovascular fitness. Subjects were randomly selected to participate and then randomly assigned to one of the two programs.

After six months of exercising, they were given a score based on their fitness performance.

Hypothesis is Is there any significance difference between old exercise program and new excercise program.

Here both variables are dependnet variables hence we use Paired t test

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