Questions from Business Statistics

Q: A production line operation is tested for filling weight accuracy using the

A production line operation is tested for filling weight accuracy using the following hypotheses. Hypothesis ………………………………… Conclusion and Action H0: µ = 16 …………………………….. Filling okay; keep running Ha...

Q: In 2018 a survey of 10,508 CEOs by PayScale.

In 2018 a survey of 10,508 CEOs by PayScale. com, the range of annual salaries reported was from $73,187 to $336,550. But do CEO salaries differ across the two most populous states in the United State...

Q: Each year Bloomberg Businessweek publishes statistics on the world’s 1000 largest companies

Each year Bloomberg Businessweek publishes statistics on the world’s 1000 largest companies. A company’s price/earnings (P/E) ratio is the company’...

Q: Police records show the following numbers of daily crime reports for a

Police records show the following numbers of daily crime reports for a sample of days during the winter months and a sample of days during the summer months. Use a .05 level of significance to determi...

Q: A certain brand of microwave oven was priced at 10 stores in

A certain brand of microwave oven was priced at 10 stores in Dallas and 13 stores in San Antonio. The data follow. Use a .05 level of significance and test whether prices for the microwave oven are th...

Q: Chicago Midway International Airport and Baltimore/Washington International Thurgood Marshall Airport

Chicago Midway International Airport and Baltimore/Washington International Thurgood Marshall Airport were the U.S. airports with the worst percentage of delayed flights in 2015 (Travel+Leisure websit...

Q: A sample of 15 consumers provided the following product ratings for three

A sample of 15 consumers provided the following product ratings for three different products. Five consumers were randomly assigned to test and rate each product. Use the Kruskal-Wallis test and &Icir...

Q: Three admission test preparation programs are being evaluated. The scores obtained

Three admission test preparation programs are being evaluated. The scores obtained by a sample of 20 people who used the programs provided the following data. Use the Kruskal-Wallis test to determine...

Q: Forty-minute workouts of one of the following activities three days

Forty-minute workouts of one of the following activities three days a week will lead to a loss of weight, assuming no change in calories consumed. The following sample data show the number of calories...

Q: The National Football League (NFL) holds its annual draft of

The National Football League (NFL) holds its annual draft of the nation’s best college football players in April each year. Prior to the draft, various sporting news services project...