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Part 1

The following numbers are the differences in pulse rate​ (beats per​ minute) before and after running for 12 randomly selected people. Positive numbers mean the pulse rate went up. Test the hypothesis that the mean difference in pulse rate was more than 0​, using a significance level of 0.05. Assume the population distribution is Normal.

25​, 10​, 10​, 8​, 13​, 8​, 0​, 2​, 12​, 42​, 4​, and 16

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Part 1

Determine the null and alternative hypotheses. Choose the correct answer below.

A.

Upper H 0​: muless than0

Upper H Subscript a​: mugreater than or equals0

B.

Upper H 0​: muequals0

Upper H Subscript a​: mugreater than0

Your answer is correct.C.

Upper H 0​: muequals0

Upper H Subscript a​: muless than0

D.

Upper H 0​: mugreater than0

Upper H Subscript a​: muless than or equals0

E.

Upper H 0​: muequals0

Upper H Subscript a​: munot equals0

F.

Upper H 0​: munot equals0

Upper H Subscript a​: muequals0

Part 2

Find the test statistic.

tequals

  

enter your response here

​(Round to two decimal places as​ needed.)

asked by guest
on Nov 13, 2024 at 10:15 pm



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