Questions from Business Statistics

Q: You are sales manager for a regional division of a beverage company

You are sales manager for a regional division of a beverage company. The sales goals for your representatives have an average of $768,000 with a standard deviation of $240,000. You have been instructe...

Q: For the salary numbers, separated according to gender: a

For the salary numbers, separated according to gender: a. Construct a histogram for just the males. b. Construct a histogram for just the females using the same scale as in part a to facilitate compar...

Q: For the preceding problem, compare the coefficient of variation before and

For the preceding problem, compare the coefficient of variation before and after the sales goal adjustment. Why does it change (or not change) in this way?

Q: Find the standard deviation of the VAT taxes from Table 4.

Find the standard deviation of the VAT taxes from Table 4.3.2 in Chapter 4. What does this tell you about international taxation practices from one country to another? Table 4.3.2:

Q: Consider the running time of movies from Table 4.3.

Consider the running time of movies from Table 4.3.10 in Chapter 4. a. Find the standard deviation. What does this tell you about these movie times? b. Find the range. What does this tell you about th...

Q: Using the data from Table 3.8.2 in Chapter

Using the data from Table 3.8.2 in Chapter 3, find the standard deviation and range to summarize the typical variability (or uncertainty) of the market response to stock buyback announcements. Table3...

Q: Summarize the variability in the cost of a traditional funeral service using

Summarize the variability in the cost of a traditional funeral service using the standard deviation, based on the data in Table 3.8.10 of Chapter 3. Table 3.8.10:

Q: Compute the standard deviation of the data from Table 4.3

Compute the standard deviation of the data from Table 4.3.1 of Chapter 4 to find the variability in spending levels from one regular customer to another for last month. Write a paragraph summarizing t...

Q: All 18 people in a department have just received across the-

All 18 people in a department have just received across the- board pay raises of 3%. What has happened to a. The average salary for the department? b. The standard deviation of salaries? c. The range...

Q: Your group has been analyzing quality control problems. Suppose that the

Your group has been analyzing quality control problems. Suppose that the probability of a defective shape is 0.03, the probability of a defective paint job is 0.06, and that these events are independe...