Each manager of a corporation was rated as being either a good, fair, or poor manager by his/her boss. The manager's educational backgr appears below: Educational Background Manager Rating H.S. Degree Some College College Degree 23 43 4 70 3 19 8 30 Master's or Ph.D 4 20 20 44 Total Good 9 39 Fair 5 87 Poor 2 34 Total 16 160 If we randomly selected one manager from this company, find the probability that they have an advanced (Master's or Ph.D.) degree giver 0.2941 0.4545 0.7059 0.5882

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The authors of a paper describe an experiment to evaluate the effect of using a cell phone on reaction time. Subjects were asked to perform a simulated driving task while talking on a cell phone. While performing this task, occasional red and green lights flashed on the computer screen. If a green light flashed, subjects were to continue driving, but if a red light flashed, subjects were to brake as quickly as possible. The reaction time (in msec) was recorded. The following summary statistics are based on a graph that appeared in the paper. n = 47 X = 525 s = 70 (a) Construct a 95% confidence interval for u, the mean time to react to a red light while talking on a cell phone. (Round your answers to three decimal places.) Interpret a 95% confidence interval for µ, the mean time to react to a red light while talking on a cell phone. There is a 95% chance that the true mean time to react to a red light while talking on a cell phone is directly in the middle of these two values. O We are…