The manager of a book store surveys people who buy mystery novels to see if the store should expand its hours. What is the population and the sample here?

In the class poll from the beginning of the year, you were asked what color car you drive. The results are summarized below. aqua 3 beige/tan/gold 39 black 80 blue 44 green 21 orange 3  pink 1 purple 3 red 45 silver 63 white 74 yellow 1 What is the mode for this data set?

Briefly explain how theory development might impact the selection of a sample.

The price drivers pay for gasoline often varies a great deal across regions throughout the United States. The following data show the price per gallon for regular gasoline for a random sample of gasoline service stations for three major brands of gasoline (Shell, BP, and Marathon) located in 11 metropolitan areas across the upper Midwest region (OthioGasPrices.com website, March 18, 2012). Click on the datalile logo to reference the data. DATA File Metropolitan Area Shl BP Marathon 3.78 3.87 Akron. Ohio Cincionati, Ohio Cleveland. Ohio Columbun, Ohio Wayne, Indiana Indianapolis, Indiana Lasing. Michigan Lexington, Kentucky Louisvile. Kennacky Muncie, Indiana 3.77 3.72 3.57 1.76 3.83 3.89 3.79 3.87 3.87 3.77 3.84 3.84 404 3.78 3.84 3.84 3.83 3.83 3.85 3.93 3.79 3.78 3.81 3.99 3.79 3.79 3.86 3.86 Toledo, Ohio 3.69 Use a = .05 to test for any significant difference in the mean price of gasoline for the three brands. If required, round your answers to four decimal places. If your answer is…