The sample of eight companies in the aerospace industry, referred to in Exercise 38, was

Chapter 0, Problem 50

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QUESTION:

The sample of eight companies in the aerospace industry, referred to in Exercise 38, was surveyed as to their return on investment last year. The results are: 10.6, 12.6, 14.8, 18.2, 12.0, 14.8, 12.2, and 15.6

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QUESTION:

The sample of eight companies in the aerospace industry, referred to in Exercise 38, was surveyed as to their return on investment last year. The results are: 10.6, 12.6, 14.8, 18.2, 12.0, 14.8, 12.2, and 15.6

ANSWER:

Step 1 of 5

Given:

The sample of eight companies in the aerospace industry was surveyed as to their return on investment last year. Results are: 10.6, 12.6, 14.8, 18.2, 12.0, 14.8, 12.2, and 15.6.

Our goal is to:

a. Compute the sample variance.

b. Determine the sample standard deviation.

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