he daily high temperature for the month of Augustin Chicago is normally distributed with a mean of 70 degrees and a standard deviation of 5 degrees What is the probability that a randomly selected August day in Chicago will have a high temperature below 85 degrees? A. 0.9987 B 0.0013 C.0.4987 D. 0.0087 QUESTION 2 A study of 15 English composition professors showed that they spent, on average, 126 minutes correcting a student's term paper with a standard deviation of 2.5 minutes. Compute a 90% confidence interval for the mean time spent by a professor grading a composition paper. Round endpoints to three decimal places. A (11.457, 13.743) B. (11.463, 13.737) C. (11.468, 13.732) D. (11.538, 13.662) rQUESTION 3 Among 200 randomly selected Internet users; it was found that 89 of them use the Internet for making travel plans. Use a significance level of 0.01 to test the claim that at least 50% of Internet users use it for making travel plans. What are the hypotheses to be tested? AH: p20.445 Ha:p<0.445 | B H?i p> 0.89 Harp <0.89 Hop 20.50 Ha: p<0.50 D. Ho:p 20.01 Haip <0.01