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If you have a sample mean of 91, a population standard deviation of 5.1 and a sample size of 41, calculate confidence inteval (95%): Select
If you have a sample mean of 91, a population standard deviation of 5.1 and a sample size of 41, calculate confidence inteval (95%):
Select one:
a. 89.44; 92.56
b. 89; 93
c. 90.32; 91.67
d. 88; 94
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