A researcher hypothesizes that the variation in the amount of money spent on business dinners is greater than the amount of money spent on lunches. The variance of nine business dinners was $6.12, and the
Variance of 12 business lunches was $0.87. What is the test value?
A) 3.1
B) 9.61
C) 49.5
D) 7.03

Question

Quizplus · Accepted Answer

The test value is calculated using the F-test for variances: F = variance of dinners / variance of lunches = 6.12 / 0.87 = 7.03.

A Researcher Hypothesizes That the Variation in the Amount of Money