You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately g=7. You would like to be 95% confident that your estimate is within 1 unit of the population mean. How large of a sample size is required? An = 918 B. n = 133 C.n = 313 D.n = 189

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You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is
approximately g=7. You would like to be 95% confident that your estimate is within 1 unit of the population mean. How large of a sample size is required?
A.n = 918
B.n = 133
C.n = 313
D.n = 189
Transcribed Image Text:You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately g=7. You would like to be 95% confident that your estimate is within 1 unit of the population mean. How large of a sample size is required? A.n = 918 B.n = 133 C.n = 313 D.n = 189
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