Let X denote the amount of time a randomly selected customer spends on hold with some insurance company. Suppose X follows a distribution with a mean of 8 hours and a variance of 16 hours. The population density curve for X is shown below. a) Is the population normally distributed? Explain. b) If you randomly pick twenty-five customers, describe the sampling distribution of the average time spent in the store; provide the mean, standard deviation, and shape. c) If you randomly pick one hundred customers, describe the sampling distribution of the average time spent in the store; provide the mean, standard deviation, and shape.
Let X denote the amount of time a randomly selected customer spends on hold with some insurance company. Suppose X follows a distribution with a mean of 8 hours and a variance of 16 hours. The population density curve for X is shown below. a) Is the population normally distributed? Explain. b) If you randomly pick twenty-five customers, describe the sampling distribution of the average time spent in the store; provide the mean, standard deviation, and shape. c) If you randomly pick one hundred customers, describe the sampling distribution of the average time spent in the store; provide the mean, standard deviation, and shape.
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 36E
Related questions
Question
-
Let X denote the amount of time a randomly selected customer spends on hold with some insurance company. Suppose X follows a distribution with a
mean of 8 hours and a variance of 16 hours. The population density curve for X is shown below.
a) Is the population
b) If you randomly pick twenty-five customers, describe the sampling distribution of the average time spent in the store; provide the mean, standard deviation, and shape.
c) If you randomly pick one hundred customers, describe the sampling distribution of the average time spent in the store; provide the mean, standard deviation, and shape.
![Value of density curve
0.10
0.08
0.06
0.04
0.02
0.00
Population Distribution for Time spent on hold
5
10
15
Time Spent on hold (hours)
20
25
30](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe1c18864-deeb-4798-b6c6-deecc83c845b%2F02e97771-5200-4e2d-989c-0cf262fe5a7d%2Fpvpe9e_processed.png&w=3840&q=75)
Transcribed Image Text:Value of density curve
0.10
0.08
0.06
0.04
0.02
0.00
Population Distribution for Time spent on hold
5
10
15
Time Spent on hold (hours)
20
25
30
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