A sample of size

=n72

is drawn from a normal population whose standard deviation is

=6.3

. The sample mean is

=x46.05

.

Part: 0 / 2

0 of 2 Parts Complete

Part 1 of 2

(a) Construct a

98

%

confidence interval for

. Round the answer to at least two decimal places.

A

98%

confidence interval for the mean is

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