Sampling A national polling organization has been hired to estimate the mean amount of cash carried…

Sampling A national polling organization has been hired to estimate the mean amount of cash carried by adults in the United States. The original sampling plan involved telephone calls placed to 2500 different telephone numbers throughout the United States, but a manager decides to save long-distance telephone expenses by using a simple random sample of 2500 telephone numbers that are all within the state of California. If this sample is used to construct a 95% confidence interval to estimate the population mean, will the estimate be good? Why or why not?

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