A random sample of n = 4 scores is obtained from a normal population with µ = 30 and σ = 8. What is the probability that the sample mean will be smaller than M = 22? a. 0.1587 b. 0.00003 c. 0.3085 d. 0.0228
A random sample of n = 4 scores is obtained from a normal population with µ = 30 and σ = 8. What is the probability that the sample mean will be smaller than M = 22? a. 0.1587 b. 0.00003 c. 0.3085 d. 0.0228
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
A random sample of n = 4 scores is obtained from a normal population with µ = 30 and σ = 8. What is the probability that the sample mean will be smaller than M = 22?
a. |
0.1587
|
|
b. |
0.00003
|
|
c. |
0.3085
|
|
d. |
0.0228
|
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