Assume that females have pulse rates that are normally distributed with a mean of μ=75.0 beats per minute and a standard deviation of σ=12.5 beats per minute. Complete parts (a) through (c) below....

Assume that females have pulse rates that are normally distributed with a mean of

μ=75.0
beats per minute and a standard deviation of

σ=12.5
beats per minute. Complete parts (a) through (c) below.

a. If 1 adult female is randomly selected, find the probability that her pulse rate is between
69

beats per minute and
81

beats per minute.

b. If
4
adult females are randomly selected, find the probability that they have pulse rates with a mean between
69
beats per minute and
81
beats per minute.

c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30?

Jun 10, 2022

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Assume that females have pulse rates that are normally distributed with a mean of μ=75.0 beats per minute and a standard deviation of σ=12.5 beats per minute. Complete parts (a) through (c) below....

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Assume that females have pulse rates that are normally distributed with a mean of μ=75.0 beats per minute and a standard deviation of σ=12.5 beats per minute. Complete parts​ (a) through​ (c) below....

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Assume that females have pulse rates that are normally distributed with a mean of μ=75.0 beats per minute and a standard deviation of σ=12.5 beats per minute. Complete parts (a) through (c) below....