Question

A simple random sample of size

nequals=1717

is drawn from a population that is normally distributed. The sample mean is found to be

x overbar equals 65x=65

and the sample standard deviation is found to be

sequals=1414.

Construct a

9595%

confidence interval about the population mean.

The lower bound is

nothing.

The upper bound is

nothing.

(Round to two decimal places as needed.)

Answer #1

Lower bound = 57.802

Upper bound = 72.198

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