Questions from Business Statistics

Q: Draw a histogram for the following list of prices charged by different

Draw a histogram for the following list of prices charged by different stores for a box of envelopes (in dollars) and describe the distribution shape: 4.40, 4.20, 4.55, 4.45, 4.40, 4.10, 4.10, 3.80, 3...

Q: As part of your firm’s loyalty system, there is a database

As part of your firm’s loyalty system, there is a database with information about customers who have joined, including the size of their immediate family, the number of cars they own, and their income...

Q: Consider the percentage change in the value of the dollar with respect

Consider the percentage change in the value of the dollar with respect to Asia-Pacific currencies over approximately three quarters from start of 2015 through mid October (Table 3.8.13). a. Construct...

Q: Consider the following list of prices (in dollars) charged by

Consider the following list of prices (in dollars) charged by different pharmacies for 12 60-mg tablets of the prescription drug Tylenol No. 4 with codeine: 17 6.75, 12.19, 9.09, 9.09, 13.09, 13.45, 7...

Q: Now examine the effect of training level on annual salary, with

Now examine the effect of training level on annual salary, with and without adjusting for age and experience. a. Find the average annual salary for each of the three training levels and compare them....

Q: Using the data from Table 2.7 of Chapter 2 for

Using the data from Table 2.7 of Chapter 2 for the 30 Dow Jones Industrial companies: a. Construct a histogram for percent change since January 2015. b. Describe the shape of the distribution. Table...

Q: Using the data from Table 2.8 of Chapter 2 for

Using the data from Table 2.8 of Chapter 2 for daily values for the Dow Jones Industrial Average: a. Construct a histogram for net change during September 2015. b. Describe the shape of the distributi...

Q: Consider the 20,000 median household income values in the donations

Consider the 20,000 median household income values in the donations database (available at the companion site). These represent the median household income for the neighborhood of each potential donor...

Q: Consider the following list of your product’s market share of 20 major

Consider the following list of your product’s market share of 20 major metropolitan areas: 0.7%, 20.8%, 2.3%, 7.7%, 5.6%, 4.2%, 0.8%, 8.4%, 5.2%, 17.2%, 2.7%, 1.4%, 1.7%, 26.7%, 4.6%, 15.6%, 2.8%, 21....

Q: Recall in the example on CEO compensation by prepackaged software companies from

Recall in the example on CEO compensation by prepackaged software companies from Chapter 3 that we identified an outlier (Lawrence J. Ellison of Oracle Corp, with compensation of $56.81 million). a. D...