A random sample of 40 regions gave a sample mean of X bar = R6.88 per 50 kilogra

Question

A random sample of 40 regions gave a sample mean of X bar = R6.88 per 50 kilograms of watermelon. Assume that the population standard deviation is R1.92 per 50 kilogram. The critical value to estimate a 95% confidence interval of the population mean is 1.645 1.684 2.021 1.96 5% A simple random sample of 30 has been collected from a population for which it is known that population standard deviation sigma = 10.0. The sample mean has been calculated as 240.0. The value at 95% confidence intervals for the population mean is 1.645 0.05

Explanation / Answer

11 ) The critical value to estimate a 95 % confidence interval of the population mean is 1.960

Option ( 4 ) is correct .

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