(b) The average earnings per share (EPS) for 10 industrial stocks randomly selected from those listed on the Dow-Jones Industrial Average (DJIA) was found to be ĩ = 1.85 with a standard deviation of s = 0.39. Assume that the EPS of industrial stocks is normally distributed. Calculate a 99% confidence interval for the average EPS of all the industrials listed on the DJIA.

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(b) The average earnings per share (EPS) for 10 industrial stocks randomly selected
from those listed on the Dow-Jones Industrial Average (DJIA) was found to be ĩ =
1.85 with a standard deviation of s = 0.39. Assume that the EPS of industrial stocks
is normally distributed. Calculate a 99% confidence interval for the average EPS of all
the industrials listed on the DJIA.
Transcribed Image Text:(b) The average earnings per share (EPS) for 10 industrial stocks randomly selected from those listed on the Dow-Jones Industrial Average (DJIA) was found to be ĩ = 1.85 with a standard deviation of s = 0.39. Assume that the EPS of industrial stocks is normally distributed. Calculate a 99% confidence interval for the average EPS of all the industrials listed on the DJIA.
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