SCENARIO 12-12
Parents complain that children read too few storybooks and watch too much television nowadays.A
survey of 1,000 children reveals the following information on average time spent watching TV and
average time spent reading storybooks
-Referring to Scenario 12-12, suppose we want to constrain the probability of committing a
Type I error to 5% when testing whether there is any relationship between average time spent
Watching TV and average time spent reading story books, the critical value will be
A) 5.991
B) 7.378
C) 12.592
D) 14.449

Question

SCENARIO 12-12
Parents complain that children read too few storybooks and watch too much television nowadays.A
survey of 1,000 children reveals the following information on average time spent watching TV and
average time spent reading storybooks 
-Referring to Scenario 12-12, suppose we want to constrain the probability of committing a
Type I error to 5% when testing whether there is any relationship between average time spent
Watching TV and average time spent reading story books, the critical value will be
A) 5.991 
B) 7.378 
C) 12.592 
D) 14.449

Quizplus · Accepted Answer

The critical value for a chi-square test with 1 degree of freedom at a 5% significance level (Type I error) is 3.841. However, since the options provided are for a different context, the closest critical value for a chi-square test with 2 degrees of freedom at a 5% significance level is 5.991.

SCENARIO 12-12 Parents Complain That Children Read Too Few Storybooks and Watch