Mathematics, 05.11.2019 01:31 sweetgirl22899

In which of the following scenarios can we calculate a confidence interval for the population mean? check all that apply. a random sample of 60 cell phone calls is selected and the mean length of calls is determined to be 3.25 minutes with a standard deviation of 4.2 minutes. a random sample of 15 women athletes is selected and their mean weight is determined to be 136 pounds. female athlete weights are known to be normally distributed with a population standard deviation of 20 pounds. a random sample of 14 cell phone calls is selected and the mean length of calls is determined to be 3.25 minutes with a standard deviation of 4.2 minutes. a random sample of 35 women athletes is selected and their mean weight is determined to be 136 pounds. female athlete weights are known to be normally distributed with a population standard deviation of 20 pounds.

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In which of the following scenarios can we calculate a confidence interval for the population mean?...