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Author Question: A random sample of n = 9 scores is obtained from a normal population with = 40 and = 18 . What is ... (Read 43 times)

V@ndy87

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on: Jun 20, 2018
A random sample of n = 9 scores is obtained from a normal population with  = 40 and  = 18 . What is the probability that the sample mean will be greater than M= 43?
 
  a. 0.4325 c. 0.1587
  b. 0.3085 d. 0.0228

Question 2

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


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momolu

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Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

B


V@ndy87

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Reply 2 on: Jun 20, 2018
Excellent

samiel-sayed

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Reply 3 on: Yesterday
Wow, this really help

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