Mathematics, 15.04.2020 02:35 jlperez77
After constructing a confidence interval estimate for a population mean, you believe that the interval is useless because it is too wide. In order to correct this problem, you need to: a. increase the sample size b. increase the sample mean c. increase the confidence coefficient d. decrease the sample size e. increase the population size
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is the standrd deviation of the population, n is the size of the sample, and z is the confidence coefficient(the higher the confidence level, the higher z is).Another question on Mathematics
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After constructing a confidence interval estimate for a population mean, you believe that the interv...
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