14. Mr. Sy asserts that fewer than 5% of the bulbs that he sells are defective. Suppose 300 bulbs are randomly selected, each are tested. and 10 defective bulbs are found. Does the data provide sufficient evidence for Mr. Sy to conclude that the fraction of defective bulbs is less than 0.05 using a = 0.01? Which of the following is the computed value? O A. 1.58 B. 1.59 O C. -1.58

Q3. Which of these statements about the 95% C.I. for µ is incorrect? A. Pr( C.I. contains µ = 95%) B. Pr( C.I. is below µ= 2.5% ) C. Pr( µ is outside the C.I. = 5%) D. Pr( C.I. is above µ = 2.5% ) %3D О А. А В. В О С. С O D. D

Q. 1In the population, the average score on a test of self-esteem is 50 (σ= 5). You select a randomsample of 25 students who score a mean of 53.a. Shine claims that these students don’t have very high self-esteem, because they are only 3points above the population mean. Why can’t she make this claim merely by looking atthe X? .b. What should she do? .c. What is the z-score for this sample? .d. What conclusion do you draw about your sample? .

1. If we randomly pull a number from U, what is the probability that it is not an element of A or not an element of B?P=