he overhead reach distances of adult females are normally distributed with a mean of 195 cm and a standard deviation of 8.6 cm. a. Find the probability that an individual distance is greater than 208.40 cm. b. Find the probability that the mean for 25 randomly selected distances is greater than 193.70 cm. c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30?
he overhead reach distances of adult females are normally distributed with a mean of 195 cm and a standard deviation of 8.6 cm. a. Find the probability that an individual distance is greater than 208.40 cm. b. Find the probability that the mean for 25 randomly selected distances is greater than 193.70 cm. c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30?
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 8E
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Question
The overhead reach distances of adult females are normally distributed with a mean of
195 cm
and a standard deviation of
8.6 cm.
a. Find the probability that an individual distance is greater than
208.40
cm.b. Find the probability that the mean for
25
randomly selected distances is greater than 193.70 cm.c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30?
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