# Question

A sample of 20 financial analysts was asked to provide forecasts of earnings per share of a corporation for next year. The results are summarized in the following table:

Forecast ($ per share) Number of Analysts

$9.95 to under $10.45 .......... 2

$10.45 to under $10.95 ......... 8

$10.95 to under $11.45 ......... 6

$11.45 to under $11.95 ......... 3

$11.95 to under $12.45 ......... 1

a. Estimate the sample mean forecast.

b. Estimate the sample standard deviation.

Forecast ($ per share) Number of Analysts

$9.95 to under $10.45 .......... 2

$10.45 to under $10.95 ......... 8

$10.95 to under $11.45 ......... 6

$11.45 to under $11.95 ......... 3

$11.95 to under $12.45 ......... 1

a. Estimate the sample mean forecast.

b. Estimate the sample standard deviation.

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