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Random samples of resting heart rates are taken from two groups. Population 1 exercises regularly, and...

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Statistics

Random samples of resting heart rates are taken from two groups.Population 1 exercises regularly, and Population 2 does not. Thedata from these two samples is given below:

Population 1: 71, 63, 68, 71, 72, 66, 73

Population 2: 68, 78, 71, 68, 75, 69, 76, 72

Is there evidence, at an α=0.07 level of significance, toconclude that there those who exercise regularly have lower restingheart rates? Carry out an appropriate hypothesis test, filling inthe information requested.

A. The value of the standardized test statistic:

Note: For the next part, your answer should useinterval notation. An answer of the form (−∞,a)(−∞,a) is expressed(-infty, a), an answer of the form (b,∞)(b,∞) is expressed (b,infty), and an answer of the form (−∞,a)∪(b,∞)(−∞,a)∪(b,∞) isexpressed (-infty, a)U(b, infty).

B. The rejection region for the standardized test statistic:

C. The p-value is

D. Your decision for the hypothesis test:

A. Reject H0
B. Do Not Reject H1
C. Do Not Reject H0
D. Reject H1

Answer & Explanation Solved by verified expert
3.7 Ratings (565 Votes)
From the given dataTest for Difference of Means1 Null and    See Answer
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