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A simple random sample of size n = 64 is obtained from a population with μ = 88 and 6 = 32. (a) Describe the sampling distribution of x. (b) What is P (x>95)? (c) What is P (x≤ 79) ? (d) What is P (84.8

A simple random sample of size n = 64 is obtained from a population with μ = 88 and 6 = 32. (a) Describe the sampling distribution of x. (b) What is P (x>95)? (c) What is P (x≤ 79) ? (d) What is P (84.8

Calculus For The Life Sciences
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
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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12:03 mylab.pearson.com/ + K A simple random sample of size n = 64 is obtained from a population with μ = 88 and o = 32. (a) Describe the sampling distribution of x. (b) What is P (x>95) ? (c) What is P (x≤ 79)? (d) What is P (84.8<x<98)? (a) Choose the correct description of the shape of the sampling distribution of x. A. The distribution is approximately normal. B. The distribution is skewed left. C. The distribution is uniform. D. The distribution is skewed right. E. The shape of the distribution is unknown. Find the mean and standard deviation of the sampling distribution of x. P = 88 0x = 4 (b) P (x>95) = 0.0400 (Round to four decimal places as needed.) (c) P (x≤79) = 0.0122 (Round to four decimal places as needed.) (Round to four decimal places as needed.) (d) P (84.8<x<98) =| ||| VO) 1 2 ... 46 ... - 32% = O 3 :
Transcribed Image Text:12:03 mylab.pearson.com/ + K A simple random sample of size n = 64 is obtained from a population with μ = 88 and o = 32. (a) Describe the sampling distribution of x. (b) What is P (x>95) ? (c) What is P (x≤ 79)? (d) What is P (84.8<x<98)? (a) Choose the correct description of the shape of the sampling distribution of x. A. The distribution is approximately normal. B. The distribution is skewed left. C. The distribution is uniform. D. The distribution is skewed right. E. The shape of the distribution is unknown. Find the mean and standard deviation of the sampling distribution of x. P = 88 0x = 4 (b) P (x>95) = 0.0400 (Round to four decimal places as needed.) (c) P (x≤79) = 0.0122 (Round to four decimal places as needed.) (Round to four decimal places as needed.) (d) P (84.8<x<98) =| ||| VO) 1 2 ... 46 ... - 32% = O 3 :
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