Questions from Business Statistics

Q: Your pocket copy of Kyrgyzstan on 4237±360 Som a Day

Your pocket copy of Kyrgyzstan on 4237±360 Som a Day claims that you can expect to spend about 4237 som each day with a standard deviation of 360 som. How well can you estimate your expenses for the t...

Q: From Exercise 50 it appeared that the mean log fusion time for

From Exercise 50 it appeared that the mean log fusion time for the VV group was greater than that of the NV group. Could the difference be due to chance? The histogram below shows the difference in th...

Q: Two stores sell watermelons. At the first store the melons weigh

Two stores sell watermelons. At the first store the melons weigh an average of 22 pounds, with a standard deviation of 2.5 pounds. At the second store the melons are smaller, with a mean of 18 pounds...

Q: According to the 2000 Census, 66% of U.S

According to the 2000 Census, 66% of U.S. households own the home they live in. A mayoral candidate conducts a survey of 820 randomly selected homes in your city and finds only 523 owned by the curren...

Q: Each year a company must send 3 officials to a meeting in

Each year a company must send 3 officials to a meeting in China and 5 officials to a meeting in France. Airline ticket prices vary from time to time, but the company purchases all tickets for a countr...

Q: The first store in Exercise 28 sells watermelons for 32 cents a

The first store in Exercise 28 sells watermelons for 32 cents a pound. The second store is having a sale on watermelons only 25 cents a pound. Find the mean and standard deviation of the difference in...

Q: The 2013 State of Women-Owned Businesses Report commissioned by American

The 2013 State of Women-Owned Businesses Report commissioned by American Express (www.womenable.com/content/userfiles/2013_State_of_WomenOwned_Businesses_Report_FINAL.pdf) says that, excluding large,...

Q: A Statistics professor comes home to find that all four of his

A Statistics professor comes home to find that all four of his children got white team shirts from soccer camp this year. He concludes that this year, unlike other years, the camp must not be using a...

Q: When to stop In Exercise 27 of the Review Exercises for Part

When to stop In Exercise 27 of the Review Exercises for Part III, we posed this question: You play a game that involves rolling a die. You can roll as many times as you want, and your score is the tot...

Q: Here another attempt at developing a good strategy for the dice game

Here another attempt at developing a good strategy for the dice game in Exercise 33 . Instead of stopping after a certain number of rolls, you could decide to stop when your score reaches a certain nu...