Amy surveyed the prices for a quart of a certain brand of motor oil. The sample...

Amy surveyed the prices for a quart of a certain brand of motor oil. The sample data, in dollars per quart, is summarized in the table below. price per quart (dollars) 1.99 with 2 stores. 2.09 with 6 stores. 2.19 with 10 stores.2.29 with 13 stores.2.39 with 8 stores. 2.49 with 3 windows. Find the mean and the standard deviation of the prices (Round your answers to three decimal places). What % of the data lies within one standard deviation of the mean? (Round to nearest whole number.) What % of data lies within two standard deviations of the mean? Round answer to nearest whole number. What% of data lies within three standard deviations of the mean. round to nearest whole number.

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Expert Solution

orchestra answered 1 year ago

A “quart” of 5W40 motor oil has 950 mL, on average, with a standard deviation of 11 mL. Assuming a normal distribution

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