Mathematics, 24.01.2020 21:31, vhife4901
Two random samples, a and b, were selected from the same population to estimate the population mean. for each sample, the mean, standard deviation, and margin of error for a 95 percent confidence interval for the population mean are shown in the table. mean standard deviation margin of error sample a 45 6.45 1.02sample b 43 7.84 0.72which of the following could explain why the margin of error of sample a is greater than the margin of error sample b? (a) the sample size of a is greater than the sample size of b. (b) the sample size of a is less than the sample size of b. (c) the sample size of a is equal to the sample size of b. (d) the mean of sample a is greater than the mean of sample b. (e) the standard deviation of sample a is less than the standard deviation of sample b.
Answers: 3
Two random samples, a and b, were selected from the same population to estimate the population mean....
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