chi square test for independence

Find the degrees of freedom.

• 4
• 5
• 6
• 7

What must be true about the expected values in a chi square test?

• greater than or equal to 2
• greater than or equal to 5
• greater than or equal to 10
• greater than or equal to 30

Which test would you use to see if gender is a factor choosing a person’s favorite fruit?  900 college students were surveyed and their favorite fruit recorded.

• 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

A random sample of traffic tickets given to motorists in a large city is examined.  The tickets are classified according to the race of the driver.  The results are summarized in the table provided.  Assuming H₀ is true, the expected number of Hispanic drivers who would receive a ticket is

• 10.36
• 11
• 11.84
• 12

What are the degrees of freedom for the following χ² test?

• 6

• 2

• 5

• 36

Is nationality related to favorite drink?  300 people were observed.

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

What is the null hypothesis?

• Injury type is independent of position played
• Injury type is dependent on the position played independent

In the formula for Chi Sqare, the E stands for

• the sum

• the observed frequency

• The expected frequency

• the p value

A chi-square test is used to test whether a 0 to 9 spinner is "fair" (that is, the outcomes are all equally likely).  The spinner is spun 100 times, and the results are recorded.  The expected counts for spinning a 5 will be

• 5
• 10
• 11.1
• 20