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Elementary Statistics: A Step By Step Approach | 9th Edition | ISBN: 9780073534985 | Authors: Allan Bluman
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Assume that all variable are approximately

Chapter 7, Problem 10E

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QUESTION:

For Exercises 5 through 20, assume that all variables are approximately normally distributed.

Dance Company Students The number of students who belong to the dance company at each of several randomly selected small universities is shown here. Estimate the true population mean size of a university dance company with 99% confidence.

21       25        32        22        28        30        29        30

47       26        35        26        35        26        28        28

32        27       40

Questions & Answers

QUESTION:

For Exercises 5 through 20, assume that all variables are approximately normally distributed.

Dance Company Students The number of students who belong to the dance company at each of several randomly selected small universities is shown here. Estimate the true population mean size of a university dance company with 99% confidence.

21       25        32        22        28        30        29        30

47       26        35        26        35        26        28        28

32        27       40

ANSWER:

Answer

Step 1 of 1

(a)

We have given the number of students who belong to the dance company at each of several randomly selected small universities.

We are asked to estimate the true population mean size of a university dance company with 99 % confidence.

Assume normal distribution.

21

25

32

22

28

30

29

30

47

26

35

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