Questions from Business Statistics

Q: Using the yearly amount of solar power generated by utilities (in

Using the yearly amount of solar power generated by utilities (in millions of kWh) in the United States from 2002 through 2018 data for Problem 16.16 (stored in Solar Power), a. fit a third-order auto...

Q: Using the data for Problem 16.15 that represent the number

Using the data for Problem 16.15 that represent the number of new, single-family houses sold in the United States from 1992 through 2018 (stored in House Sales), a. fit a third-order autoregressive mo...

Q: Using the data for the number of automobiles assembled in the United

Using the data for the number of automobiles assembled in the United States for Problem 16.17 and Problem 16.29 (stored in Auto Production), a. Performs a residual analysis for each model. b. Compute...

Q: Referring to the results for Problem 16. 13 that used the

Referring to the results for Problem 16. 13 that used the file GDP, a. Performs a residual analysis. b. Compute the standard error of the estimate (Srx). c. Compute the MAD. d. On the basis of (a) thr...

Q: Using the bonuses paid to workers on Wall Street data for Problem

Using the bonuses paid to workers on Wall Street data for Problem 16.12 and Problem 16.28 (stored in Bonuses). a. Performs a residual analysis for each model. b. Compute the standard error of the esti...

Q: The file Crude Oil contains the volume (in barrels) of

The file Crude Oil contains the volume (in barrels) of Canadian crude oil exports by rail from January 2012 to May 2019. Source: Data extracted from National Energy Board, "Canadian Crude Oil Exports...

Q: The file Silver-Q contains the price in London for an

The file Silver-Q contains the price in London for an ounce of silver (i n US$) at the end of each quarter from 2004 through 2018. Source: Data extracted from USAGold, "Daily Silver Price History," bi...

Q: The file Gold contains the price in London for an ounce of

The file Gold contains the price in London for an ounce of gold (in US$) at the end of each quarter from 2004. Source: Data extracted from USAGold, "Daily Gold Price History," bit.ly/2w8iBSl. a. Plot...

Q: Thirty companies comprise the DJIA. How big are these companies?

Thirty companies comprise the DJIA. How big are these companies? One common method for measuring the size of a company is to use its market capitalization, which is computed by multiplying the number...

Q: What are the distinguishing features of the completely randomized design and two

What are the distinguishing features of the completely randomized design and two-factor factorial designs?