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3 November, 10:08

The mean resting pulse rate for men is 72 beats per minute. a simple random sample of men who regularly work out at mitch's gym is obtained and their resting pulse rates (in beats per minute) are listed below. use a 0.05 significance level to test that that these sample pulse rates come from a population with a mean less than 72 beats per minute.

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  1. 3 November, 10:11
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    Claim: the mean resting pulse rate for men is less than 72 bpm.

    Symbolic form would be: μ < 72

    Step 1: null hypothesis : μ > = 7 2 b p m

    Step 2: alternative hypothesis: μ < 7 2 b p m

    Step 3: the test statistic is z = mean - μ / standard dev/sqrt (n) = - 3/4 / 1.7639 = - 1.92

    Step 4: c v method: since z α = - 1.645, the test static is z = - 1.92 is less than the CV, we reject null hypothesis

    P Value method: area is 0.0274, since the p value is < = α, reject null hypothesis.

    Step 5: the sample data support the claim that the mean resting pulse rate for men is less than 72 bpm.
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