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From a random sample of 36 days in the recent year, the closing stock prices had...

From a random sample of 36 days in the recent year, the closing stock prices had a mean of $ 19.31 and the standard deviation of $2.37.  Using the information to construct the 90% confidence interval for the population mean is between:

a.

(18.54 , 20.08)
b.

(18.66 , 19.96)
c.

(17.62 , 18.01)
d.

(16.02 , 17.98)
Math   Statistics-And-Probability   
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