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In: Statistics and Probability

The Ministry of Trade and Commerce of Business for British Columbia would like to estimate the...

The Ministry of Trade and Commerce of Business for British Columbia would like to estimate the average hourly wage for union workers in Vancouver, with a 90% confidence level and a margin of error within plus or minus $2.00. Assuming the standard deviation for union wage rates is $8.50, determine the required sample size. (2 points)

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Expert Solution

Solution :

Given that,

Population standard deviation = = $8.50

Margin of error = E = $2.00

Z/2 = 1.645

sample size = n = [Z/2* / E] 2

n = [1.645 * 8.50/ 2]2

n = 49

The required sample size (n) is 49

orchestra answered 2 years ago
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