Use the following to answer questions :
You ask 100 persons what color of car they like the most.The table below lists the observed frequencies for such a survey.

-The null hypothesis for the goodness-of-fit test is that 10% of all persons like black cars,25% like blue cars,20% like red cars,10% like white cars,and 35% like other colors.The significance level is 2.5%.What is the critical value of chi-square?
A)9.488
B)11.143
C)12.833
D)11.070

Question

Use the following to answer questions :
You ask 100 persons what color of car they like the most.The table below lists the observed frequencies for such a survey.
 
-The null hypothesis for the goodness-of-fit test is that 10% of all persons like black cars,25% like blue cars,20% like red cars,10% like white cars,and 35% like other colors.The significance level is 2.5%.What is the critical value of chi-square?
A)9.488 
B)11.143 
C)12.833 
D)11.070

Quizplus · Accepted Answer

The critical value for a chi-square test with 4 degrees of freedom (5 categories - 1) at a 2.5% significance level is 11.143.

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