Suppose a simple random sample of size n = 64 is obtained from a population that is skewed right with μ= 82 and σ = 24. (a) Describe the sampling distribution of x. (b) What is P (x86.8)? (c) What is P (x≤75.25)? (d) What is P (80.5

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 19E
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Suppose a simple random sample of size n = 64 is obtained from a population that is skewed right with p=82 and σ = 24.
(a) Describe the sampling distribution of x.
(b) What is P (x>86.8)?
(c) What is P (xs75.25)?
(d) What is P (80.5<x<88.45)?
(a) Choose the correct description of the shape of the sampling distribution of x
OA. The distribution is approximately normal.
soutio
OB. The distibution is skewed right
OC. The distribution is uniform.
OD. The distribution is skewed left
O E. The shape of the distribution is unknown.
Transcribed Image Text:Suppose a simple random sample of size n = 64 is obtained from a population that is skewed right with p=82 and σ = 24. (a) Describe the sampling distribution of x. (b) What is P (x>86.8)? (c) What is P (xs75.25)? (d) What is P (80.5<x<88.45)? (a) Choose the correct description of the shape of the sampling distribution of x OA. The distribution is approximately normal. soutio OB. The distibution is skewed right OC. The distribution is uniform. OD. The distribution is skewed left O E. The shape of the distribution is unknown.
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