A sample of n = 16 scores is selected from a normal population with µ = 60 and σ = 20.
A)What is the probability that the sample mean will be greater than 50?
B)What is the probability that the sample mean will be less than 56?
C)What is the probability that the sample mean will be within 5 points of the population mean? That is, what is p(55

Question

A sample of n = 16 scores is selected from a normal population with µ = 60 and σ = 20.
A)What is the probability that the sample mean will be greater than 50?
B)What is the probability that the sample mean will be less than 56?
C)What is the probability that the sample mean will be within 5 points of the population mean? That is, what is p(55< X < 65)?

Quizplus · Accepted Answer

The Answer of A sample of n = 16 scores is selected from a normal population with µ = 60 and σ = 20.
A)What is the probability that the sample mean will be greater than 50?
B)What is the probability that the sample mean will be less than 56?
C)What is the probability that the sample mean will be within 5 points of the population mean? That is, what is p(55< X < 65)?

A Sample of N = 16 Scores Is Selected from a Normal