Math 245 - Wolfle - Test 2 1 1. If you found a 95% confidence interval for the proportion of women in coll to be (.476 to .581), which of the following statements would be correct to say (with 95% confidence) about the comparison of women to men in college? a. The proportion of women in college is higher than that of men b. The proportion of women in college is lower than that of men c. There proportion of women in college is the same than that of men d. There is not enough information to determine anything about the comparison of proportions of men and women in college 12. What does a Type I error indicate? a. We do not reject Ho when Ho is true b. We do not reject Ho when Ho is false c. We reject Ho when Ho is true d. We reject Ho when Ho is false 13. What is the sample mean if a 95% confidence interval was found to be 0.5 to 8? a. 3.75 b. 4.25 C. 7.5 d. 8.5 14. Which of the following correlation coefficients (r) would most likely be associated with a data set that has a positive linear correlation? a. -0.932 b. 0.021 C. 4.03 d. .71 15. If two variables have a negative linear correlation, what can you say about the value for y as the value for x increases? a. It will tend to decrease b.It will tend to increase c. It will tend to stay the same d.It can't be determined using the given information 16. y is an example of: a. A parameter A proportion C. A mean d. A confidence interval