33. A business statistics class with 250 students (N, recently had an "am c. which 210 students earned a assing grade A random sample of 60 stude:ts,n) was selected 'rom this class. What is the probal-ility that vetw 21. 48 ard 56 students passed this exam? 34. According to IDC. Apple controlled 10.0% of the global computer market in the 1st quarter of 2013. To verity this market share, a random sample of 150 computer users was selected of which 85% were Apple models. Determine the in.erval that contains 95% of the sa...ple proportions from this sa...pling distribution and conclude whether or not this sample supports the findings of IDC. 33. Tire Kingdom installs automobile tires on a first come first-served basis. A random sample of 50 customers experienced an average wait time of 93., minutes. Assume that the standard deviation of total wait time for all customers is 20.0 minutes. Determine the 90% confidence interval for this sample.