Questions from Business Statistics

Q: Environmentalists are concerned about emissions of sulfur dioxide into the air.

Environmentalists are concerned about emissions of sulfur dioxide into the air. The average number of days per year in which sulfur dioxide levels exceed 150 milligrams per cubic meter in Milan, Italy...

Q: Shown below are the maximum per diem rates for 11 international cities

Shown below are the maximum per diem rates for 11 international cities provided by the U.S. Department of State. The per diem rates include hotel, car, and food expenses. Use this list to calculate th...

Q: On a certain day the average closing price of a group of

On a certain day the average closing price of a group of stocks on the New York Stock Exchange is $35 (to the nearest dollar). If the median value is $33 and the mode is $21, is the distribution of th...

Q: A local hotel offers ballroom dancing on Friday nights. A researcher

A local hotel offers ballroom dancing on Friday nights. A researcher observes the customers and estimates their ages. Discuss the skewness of the distribution of ages if the mean age is 51, the median...

Q: Construct a box-and-whisker plot on the following data

Construct a box-and-whisker plot on the following data. Do the data contain any outliers? Is the distribution of data skewed?

Q: 23. The volume of wheat in each silo in Nebraska in

23. The volume of wheat in each silo in Nebraska in August. 24. A rating scale of the productivity of each worker which has as its adjectives: very poor, poor, average, good, outstanding. 25. A perso...

Q: Suppose a consumer group asked 18 consumers to keep a yearly log

Suppose a consumer group asked 18 consumers to keep a yearly log of their shopping practices and that the following data represent the number of coupons used by each consumer over the yearly period. U...

Q: Use a business analytics approach to analyze the following data using descriptive

Use a business analytics approach to analyze the following data using descriptive statistics. Write a half-page report of your findings such that it might aid business people in making decisions from...

Q: Suppose a market research firm enlisted 800 families in one U.

Suppose a market research firm enlisted 800 families in one U.S. city to participate in a study of expenditures for the December holiday season. Each family kept a log of spending for this holiday sea...

Q: The 2010 U.S. Census asked every household to report

The 2010 U.S. Census asked every household to report information on each person living there. Suppose for a sample of 30 households selected, the number of persons living in each was reported as follo...