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Given the sample mean and the sample standard deviation. Construct the? 90% and? 95% confidence intervals for the population mean. A random sample of 35 home theater systems has a mean price of ?$146.00 and a standard deviation is ?$16.70

Construct a? 90% confidence interval for the population mean.

Construct a? 95% confidence interval for the population mean.

Choose the correct answer below.

A. With? 90% confidence, it can be said that the population mean price lies in the first interval. With? 95% confidence, it can be said that the population mean price lies in the second interval. The? 95% confidence interval is wider than the? 90%.

B. With? 90% confidence, it can be said that the sample mean price lies in the first interval. With? 95% confidence, it can be said that the sample mean price lies in the second interval. The? 95% confidence interval is wider than the? 90%.

C. With? 90% confidence, it can be said that the population mean price lies in the first interval. With? 95% confidence, it can be said that the population mean price lies in the second interval. The? 95% confidence interval is narrower than the?90%.

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