Choose the correct chi square test

Find the degrees of freedom.

• 4
• 5
• 6
• 7

The table shows the number or babies born on each day of the week.  Is there evidence that births are more likely on specific days of the week?

• yes, the p value is greater than .05
• no, the p value is less than .05
• yes, the p value is less than .05
• no, the p value is greater than .05

Which test would you use to see if the distribution of music that Californians listen to is the same as that of Nevadans?  900 Californians and 600 Nevadans were surveyed.

• Chi-square Goodness of Fit Test
• Chi-Square Test for Homogeneity
• Chi-Square Test for Independence/Association
• Not a Chi-square test

Which test would you use .... In 1974, each acre of the Tahoe basin was assessed to see what condition the soil was in.  23% of acres were of type I, 32% were of type II, 41% were of type III, and 16% were of type IV.  This year the region was assessed again and the number of each type were again determined.

• Chi-square Goodness of Fit Test
• Chi-Square Test for Homogeneity
• Chi-Square Test for Independence/Association
• Not a Chi-square test

What are the expected counts of a female who likes Pepsi?

• 10.5
• 11
• 14.5
• 6.3

The manager of a high school cafeteria is planning to offer several new types of food for student lunches in the following school year.  She wants to know if each type of food will be equally popular so she can start ordering supplies.  To find out, she selects a random sample of 100 students and asks them, "Which type of food do you prefer: Asian food, Mexican food, pizza, or hamburgers?"  Here are the data in the table provided.  Identify the p-value and decide which of the following is the most appropriate conclusion?

• Because 0.0129 is less than α = 0.05, fail to reject H₀.  There is convincing evidence that the food choices are equally popular.
• Because 0.0129 is less than α = 0.05, reject H₀.  There is convincing evidence that the food choices are not equally popular.
• Because 0.0289 is less than α = 0.05, reject H₀.  There is convincing evidence that the food choices are not equally popular.
• Because 0.0289 is less than α = 0.05, fail to reject H₀.  There is not convincing evidence that the food choices are equally popular.

Is eye color a predictor of favorite color? 5000 people were part of a survey.

• Chi Square Goodness of Fit Test

• Chi Square Test for Homogeneity

• Chi Square Test for Independence

A realty firm is interested in whether there are certain days of the month that are more likely than others for selling a house. Data was taken over the last several years.

• Chi Square Goodness of Fit Test

• Chi Square Test for Homogeneity

• Chi Square Test for Independence

Is Gender a factor in a person’s favorite fruit? 400 men and 500 women were asked what their favorite fruit is to see if the distribution of favorite fruit is the same for men and women.

• Chi Square Goodness of Fit Test

• Chi Square Test for Homogeneity

• Chi Square Test for Independence

Are some age groups more likely to commit crimes than other age groups? The number of crimes for each age group was studied by an investigator

• Chi Square Goodness of Fit Test

• Chi Square Test for Homogeneity

• Chi Square Test for Independence