Question
In: Statistics and Probability
An investigator wants to determine if a new exercise program aimed at reducing the overall mean...
- An investigator wants to determine if a new exercise program aimed at reducing the overall mean body weight among senior citizens is more effective than no exercise. A survey of 81 participants in the program finds their average body weight to be 150 lbs with a sample standard deviation of 9 lbs, while 100 senior citizens with no exercise had a sample bodyweight of 200 lbs with a sample standard deviation of 10 lbs.
- Complete the following to test the hypothesis that the mean body weight those wh exercised is less than that of those who did not.
Research hypothesis:
Ha: H0:
Test statistic
Critical value at α=.01.
Conclusion:
Possible error in terms of the problem:
- Construct a 95% confidence interval for the average body weight of senior citizens who did the exercise program,
Solutions
orchestra answered 2 years agoRelated Solutions
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