Solution :
Given that,
Population standard deviation = = 3750
a) Margin of error = E = 500
At 95% confidence level the z is,
= 1 - 95%
= 1 - 0.95 = 0.05
/2 = 0.025
Z/2 = 1.96
sample size = n = [Z/2* / E] 2
n = [1.96 * 3750 / 500 ]2
n = 216.09
Sample size = n = 217
b) margin of error = E = 200
sample size = n = [Z/2* / E] 2
n = [1.96 * 3750 / 200 ]2
n = 1350.56
Sample size = n = 1351
c) margin of error = E = 100
sample size = n = [Z/2* / E] 2
n = [1.96 * 3750 / 100 ]2
n = 5402.25
Sample size = n = 5403
{Exercise 8.27 (Algorithmic)}. Annual starting salaries for college graduates with degrees in business administration are generally...
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