Question 6 2 pts A researcher would like to determine if brief aerobic dancing i

Question

Question 6 2 pts A researcher would like to determine if brief aerobic dancing is a more effective treatment than the standard bicycling regimen for elderly persons. The researcher measures heart rate recovery (HRR), where lower HRR scores indicate better fitness. Nine persons volunteered for the study, giving their HRR scores after a month of bicycling, and again after a month of aerobic dance exercise. The researcher predicted lower heart rate recovery scores following dance--and hence better fitness. Below are the heart rate recovery scores for each treatment condition. Pre-Treatment- Bicycling Treatment 1 4 After Dance Regimen Treatment 2 Participant 3 4 8 7 6 Which of the following are the correct statements of the null and alternate hypotheses, Ho and HA?

Explanation / Answer

Q-4. H0: mu 1 <= mu 2

H1: mu 1> mu 2

mu 1 is HRR score for bicycling

mu 2 is HRR score for dance

Since it is predicted that Dance is healthier So lower HRR score and considered as alternate hypothesis

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