Questions from Business Statistics

Q: The unemployment rate can vary from one state to another, and

The unemployment rate can vary from one state to another, and in 2008 the standard deviation was 1.2% for the percent unemployed, which averaged 5.3% at the time. Table 12.5.5 shows these unemployment...

Q: Your boss has just asked you to write a report. Identify

Your boss has just asked you to write a report. Identify the purpose and audience in each of the following situations: a.* The firm is considering expansion of the shipping area. Background material i...

Q: Arrange selected information to form a proper reference for each of the

Arrange selected information to form a proper reference for each of the following cases. a.* The title of the article from the Wall Street Journal is “Tallying Up Viewers: Industry Group to Study How...

Q: What important information is missing from each of the following references?

What important information is missing from each of the following references? a.* Personal communication, 2016. b. Business Week, p. 80. c. Basic Business Communication (Burr Ridge, Ill.: Richard D. Ir...

Q: Amazon.com is an e-commerce firm that has shown

Amazon.com is an e-commerce firm that has shown considerable growth since its founding in 1995, and its quarterly net sales are shown in Table 14.4.4. Their 2014 annual report includes a section title...

Q: Consider PepsiCo’s quarterly net revenue as shown in Table 14.4

Consider PepsiCo’s quarterly net revenue as shown in Table 14.4.5. a. Draw a time-series plot for this data set. Describe any trend and seasonal behavior that you see. b. Plot the mo...

Q: Based on past data, your firm’s sales show a seasonal pattern

Based on past data, your firm’s sales show a seasonal pattern. The seasonal index for November is 1.08, for December it is 1.38, and for January it is 0.84. Sales for November were $285,167. a. Would...

Q: What is your interpretation of the effectiveness of the ads in this

What is your interpretation of the effectiveness of the ads in this study? What would you recommend in this situation?

Q: The number of diners per quarter eating at your apre `s

The number of diners per quarter eating at your apre `s-ski restaurant has been examined using trend-seasonal analysis. The quarterly seasonal indexes are 1.45, 0.55, 0.72, and 1.26 for quarters 1, 2,...

Q: Consider the time series of quarterly sales in thousands shown in Table

Consider the time series of quarterly sales in thousands shown in Table 14.4.6. The seasonal indices are 0.89 for quarter 1, 0.88 for 2, 1.27 for 3, and 0.93 for 4. a. Find the seasonally adjusted sal...