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Chi Square Quiz 1 (20 MCQs)

Quiz Instructions

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1. 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.
2. Which test would you use to see if shoe brand preferences changed between last year and this year? 1000 people were observed this year and last year to see what brand of shoe they were wearing.
3. Which test would you use to see if people on computers and people on handhelds use the same Internet search engines? 1000 web searches from a computer and 1500 web searches from a hand held were tracked to see what search engine was used.
4. The shape of the Chi-Square distribution is .....
5. The values of the expected should be ..... or more in at least 80% of the cells, and no cell should have an expected of less than one .....
6. What are the hypotheses for the chi-square test for 2-way tables of counts?
7. Which Test is Appropriate? A stadium manager is interested in whether the fans that buy tickets are demographically the same as the general population of the city. Currently 42% are Caucasian, 35% are Hispanic, 12% are African American, 8% are Asian, and the rest are defined as other.
8. 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
9. Which Test is Appropriate? Is nationality related to favorite drink? 300 people were observed.
10. 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.
11. Which test would you use to see whether the fans that buy tickets are demographically the same as the general population of the city. Currently 42% are Caucasian, 35% are Hispanic, 12% are African American, 8% are Asian, and the rest are defined as other.
12. How do you find degrees of freedom for a chi-square goodness of fit test?
13. If a chi-squared number is 5.29 with a df of 6, what is the p-value?
14. What must be true about the expected values in a chi square test?
15. 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.
16. Find P(Chi-Square>22) with df = 4
17. In a chi square goodness of fit test, you must have
18. 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 degrees of freedom for the test will be
19. Which Test is Appropriate? 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.
20. Which statement is NOT correct about the chi-square test statistic?
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