Questions from Business Statistics

Q: The 2010 U.S. Census also asked for each person’s

The 2010 U.S. Census also asked for each person’s age. Suppose that a sample of 40 households taken from the census data showed the age of the first person recorded on the census for...

Q: Shown below are the top 15 market research firms in the United

Shown below are the top 15 market research firms in the United States in 2018 according to the AMA Gold Top 50 Report. Compute the mean, median, P30, P60, P90, Q1, Q3, range, and the interquartile ran...

Q: Shown below are the top 10 contractors of the U.S

Shown below are the top 10 contractors of the U.S. federal government by dollars according to the U.S. General Services Administration. Use this population data to compute a mean and a standard deviat...

Q: Shown here are the top 12 biggest oil and gas companies in

Shown here are the top 12 biggest oil and gas companies in the world according to Forbes. Use these as population data and answer the questions that follow. Company ____________ Production Volume (mil...

Q: The U.S. Department of the Interior releases figures on

The U.S. Department of the Interior releases figures on mineral production. Following are the 15 leading states in nonfuel mineral production in the United States for 2016. State ________________ Valu...

Q: Financial analysts like to use the standard deviation as a measure of

Financial analysts like to use the standard deviation as a measure of risk for a stock. The greater the deviation in a stock price over time, the more risky it is to invest in the stock. However, the...

Q: 10. The graphical depiction that is a type of vertical bar

10. The graphical depiction that is a type of vertical bar chart and is used to depict a frequency distribution is a _______________. 11. The graphical depiction that utilizes cumulative frequencies i...

Q: The Polk Company reported that the average age of a car on

The Polk Company reported that the average age of a car on U.S. roads in a recent year was 7.5 years. Suppose the distribution of ages of cars on U.S. roads is approximately bell shaped. If 99.7% of t...

Q: According to a Human Resources report, a worker in the industrial

According to a Human Resources report, a worker in the industrial countries spends on average 419 minutes a day on the job. Suppose the standard deviation of time spent on the job is 27 minutes. a) If...

Q: The following are per capita GDP figures for eight eastern European countries

The following are per capita GDP figures for eight eastern European countries according to the World Bank. The monetary figures are in international dollars; for comparison, the per capita GDP for the...