Questions from Business Statistics

Q: The Bureau of Transportation Statistics keeps track of all border crossings through

The Bureau of Transportation Statistics keeps track of all border crossings through ports of entry along the U.S.-Canadian and U.S.-Mexican borders. The data contained in the file BorderCrossings show...

Q: Five observations taken for two variables follow. /

Five observations taken for two variables follow. a. Develop a scatter diagram with x on the horizontal axis. b. What does the scatter diagram developed in part (a) indicate about the relationship be...

Q: Five observations taken for two variables follow. /

Five observations taken for two variables follow. a. Develop a scatter diagram for these data. b. What does the scatter diagram indicate about a relationship between x and y? c. Compute and interpre...

Q: The file StockComparison contains monthly adjusted stock prices for technology company Apple

The file StockComparison contains monthly adjusted stock prices for technology company Apple, Inc., and consumer-goods company Procter & Gamble (P&G) from 2013–2018. a. Develop a scatter diagram with...

Q: A department of transportation’s study on driving speed and miles per gallon

A department of transportation’s study on driving speed and miles per gallon for midsize automobiles resulted in the following data: Compute and interpret the sample correlation co...

Q: Over the past 40 years, the percentage of homes in the

Over the past 40 years, the percentage of homes in the United States with smoke detectors has risen steadily and has plateaued at about 96% as of 2015 (National Fire Protection Association website). W...

Q: Nielsen Media Research tracks the top-rated television shows. The

Nielsen Media Research tracks the top-rated television shows. The following data show the television network that produced each of the 25 top-rated shows in the history of television. a. Construct a...

Q: The Russell 1000 is a stock market index consisting of the largest

The Russell 1000 is a stock market index consisting of the largest U.S. companies. The Dow Jones Industrial Average is based on 30 large companies. The file Russell gives the annual percentage returns...

Q: A random sample of 30 colleges from Kiplinger’s list of the best

A random sample of 30 colleges from Kiplinger’s list of the best values in private college provided the data shown in the file BestPrivateColleges (Kiplinger website). The variable named Admit Rate (%...

Q: The U.S. Bureau of Labor Statistics collects data on

The U.S. Bureau of Labor Statistics collects data on unemployment rates in each state. The data contained in the file UnemploymentRates show the unemployment rate for every state and the District of C...