Author Question: In an ANOVA test of the differences between the means of three groups, the null hypothesis is _____. ... (Read 38 times)

Sufayan.ah · **on:** Jun 29, 2018

In an ANOVA test of the differences between the means of three groups, the null hypothesis is _____.
a. 1 = 2 = 3
b. 1 2 3
c. 1 - 2 - 3 = 0
d. 1 + 2 + 3 = 1

Question 2

The growth of direct-response broadcast media was the largest in which time period?
a. early 1980s c. early 1990s
b. late 1980s and early 1990s d. late 1980s and 1990s