AnswersMath 4Sampling Distribution of the Sample Mean

Sampling Distribution of the Sample Mean — Quiz Answers

10 verified answers
3

The salaries of professional baseball players are heavily skewed right with a mean of 3 point 2 dollars million and a standard deviation of 2 dollars million. A baseball analyst randomly selects 40 athletes and records the mean salary. Which of the following best describes the sampling distribution of all possible samples of size 40 ?

A
approximately Normal with a mean of 3 point 2 million and a standard deviation of 2 million
B
skewed right with a mean of 3 point 2 million and a standard deviation of 2 million
C
approximately Normal with a mean of 3 point 2 million and a standard deviation of 0 point 3 2 million
D
skewed right with a mean of 3 point 2 million and a standard deviation of 0 point 3 2 million
7

The prices of pants at a large clothing store chain are skewed left with a mean of 32 dollars and a standard deviation of 20 dollars The manager at one of the stores randomly selects 10 pairs of pants. Which of the following best describes the sampling distribution of all possible samples of size 10 ?

A
approximately Normal with a mean of 32 and a standard deviation of 20
B
approximately Normal with a mean of 32 and a standard deviation of 6 point 3 2
C
skewed left with a mean of 32 and standard deviation of 6 point 3 2
D
skewed left with a mean of 32 and a standard deviation of 20

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