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Answers to Review Quiz
1. 52/60 or about 87%
2. quantitative discrete
3. Stratified
4. statistic
5. 5
6. sample mean = 2.75 days
7. IQR = 1
8. B
9. yhat = -59.3931+ .07193x, r = .9966
10. 31 or 32
11. 951; 1000
12. student 1 13. strong negative correlation
14. 57/120
15. 11/41
16. 0.1353
17. 1/2
18. binomial, 0.5839
19. 0.4013
20. normal; 9.6232
21. 8/14
22. 5.92 years
23. two proportions
24. matched pairs
25. (54.64, 97.08)
26. C
27. like a normal (symmetrical) curve
28. the null hypothesis is true
29. goodness-of-fit
30. no, the data are observed values
31. test of independence
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