You are interested in finding a 91% confidence interval for the average number of miles that Americans drove last year. Based on historical records, you know that the standard deviation for annual miles driven is 3518 miles. Suppose you survey 92 randomly selected Americans and find that they averaged 14,289 miles with a standard deviation of 3096 miles. Round your answers to the nearest whole number. B. With 91% confidence the mean number of miles driven by all Americans last year is between__________  and  ___________ . C. If many groups of 92 randomly selected Americans were surveyed, then a different confidence interval would be produced from each group. About_________ percent of these confidence intervals will contain the true population mean number of miles driven by Americans and about__________percent will not contain the true population mean number of miles driven by Americans.

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A:

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A: for more information ping me    happy learning

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A: Sum of deviation  of scores from mean is always zero.

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A: Group No.Group sizeMeanSD11075428892312816

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.