How many judges should be selected to estimate the population mean wage with 90% confidence and a margin of error of $2.00

The number of judges that should be selected  is 25

Step-by-step explanation:

Given that:

The C.I = 90%

Level of significance = 1 - C.I

= 1 - 0.90

= 0.10

Critical level for at 0.10 = 1.645

The margin of error E = 2.00

Let's assume that the sample standard deviation was $6.11

Then;

The number of judges that should be selected can be computed by using the formula:

n = 25.26

n ≅ 25

add 5 subtract 1

step-by-step explanation:

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