You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 35 business days, the mean closing price of a certain stock was $120.98. Assume the population standard deviation is $11.33. The 90% confidence interval is (_,_). (Round to two decimal places as needed.) The 95% confidence interval is (_,_). (Round to two decimal places as needed.) Which interval is wider? Choose the correct answer below. O The 90% confidence interval O The 95% confidence interval • A. You can be 90% confident that the population mean price of the stock is outside the bounds of the 90% confidence interval, and 95% genfident for the 95% interval. O B. You can be certain that the closing price of the stock was within the 90% confidence interval for approximately 32 of the 35 days, and was within the 95% confidence interval for approximately 33 of the 35 days. O c. You can be certain that the population mean price of the sto
You are given the sample
From a random sample of 35 business days, the mean closing price of a certain stock was $120.98. Assume the population standard deviation is $11.33.
The 90% confidence interval is (_,_). (Round to two decimal places as needed.)
The 95% confidence interval is (_,_). (Round to two decimal places as needed.)
Which interval is wider? Choose the correct answer below.
O The 90% confidence interval
O The 95% confidence interval
• A. You can be 90% confident that the population mean price of the stock is outside the bounds of the 90% confidence interval, and 95% genfident for the 95% interval.
O B. You can be certain that the closing price of the stock was within the 90% confidence interval for approximately 32 of the 35 days, and was within the 95% confidence interval for approximately 33 of the 35 days.
O c. You can be certain that the population mean price of the stock is either between the lower bounds of the 90% and 95% confidence intervals or the upper bounds of the 90% and 95% confidence intervals.
O D. You can be 90% confident that the population mean price of the stock is between the bounds of the 90%%
confidence interval, and 95% confident for the 95% interval
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