A population has standard deviation =σ17.2 .   Part 1 of 2       (a) How large a sample must be drawn so that a 99% confidence interval for μ will have a margin of error equal to 4.4 ? Round the critical value to no less than three decimal places. Round the sample size up to the nearest integer.     A sample size of   is needed to be drawn in order to obtain a 99% confidence interval with a margin of error equal to 4.4 .

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A population has standard deviation

=σ17.2
.

 

Part 1 of 2
 
 
 

(a) How large a sample must be drawn so that a

99%
confidence interval for
μ
will have a margin of error equal to
4.4
?

Round the critical value to no less than three decimal places.
Round the sample size up to the nearest integer.

 

 

A sample size of
 
is needed to be drawn in order to obtain a
99%
confidence interval with a margin of error equal to
4.4
.
 
 
 

 

 

 

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