Abby Kratz, a market specialist at the market research firm of Saez, Sikes, and Spitz, is analyzing household budget data collected by her firm. Abby's dependent variable is monthly household expenditures on groceries (in $'s), and her independent variable is annual household income (in $1,000's). Regression analysis of the data yielded the following tables: Abby's sample size (n) is ___.
A) 8
B) 10
C) 11
D) 20
E) 12

Question

Abby Kratz, a market specialist at the market research firm of Saez, Sikes, and Spitz, is analyzing household budget data collected by her firm. Abby's dependent variable is monthly household expenditures on groceries (in $'s), and her independent variable is annual household income (in $1,000's). Regression analysis of the data yielded the following tables:   Abby's sample size (n) is ___.
A) 8 
B) 10 
C) 11 
D) 20 
E) 12

Quizplus · Accepted Answer

The sample size is usually denoted by "n" and can be found in the first table under "observations". In this case, n = 11. Therefore, the correct answer is C) 11.

Abby Kratz, a Market Specialist at the Market Research Firm