Are there any statistically significant differences

This preview shows page 5 - 6 out of 6 pages.

Are there any statistically significant differences in baseline characteristics between treatment groups? Justify your answer . (Points : 2)
Question 27. 27. Based on the table in #26, match each of the following study questions to the appropriate null and alternative hypotheses: (Points : 3) Potential Matches: 1 : H 0 : Categories are independent of treatment level H 1 : Categories are not independent of treatment level 2 : H 0 : p 1 = p 2 H 1 : p 1 ≠ p 2 3 : H 0 : µ 1 = µ 2 H 1 : µ 1 µ 2 Answer : to compare ages between groups => #3 : to compare % females between groups=> # 2 : to compare educational levels between groups => # 1 Question 28. 28. The margin of error is always greater than or equal to the standard error (Points : 1)
Question 29. 29. If a test is run and p=0.0356, then we can reject H 0 at a=0.01 (Points : 1)
Question 30. 30. If a 95% CI for the difference in two independent means is (2.1 to 4.5), there is no significant difference in means (Points : 1)
False Question 31. 31. In the standard normal distribution, the mean = the median (Points : 1) True False
Question 32. 32. A logistic regression model returns a coefficient for variable A of 2.12. What is the odds ratio for variable A? Calculate to two decimal places. (Points : 1)

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture