Question: note: answers on screen are not correct The IRS is concerned with improving the accuracy of tax information given by its representatives over the telephone

note: answers on screen are not correct

The IRS is concerned with improving the accuracy of tax information given by its representatives over the telephone Previous studies involved asking a set of 25 questions of a large number of IRS telephone representatives to determine the proportion of correct responses Historically, the average proportion of correct responses has been 70 percent Recently, IRS representatives have been receiving more training on April 26, the set of 25 tax questions were again asked of 20 randomly selected IRS telophone representatives. The proportions of correct answers were 15, 8, 19, 21, 17, 16, 21, 16, 17, 16, 24. 17. 23. 16.17. 15, 23, 16 21 and 18, a. What are the upper and lower controllimits for the appropriate p-chart for the IRS? Use 2 * 3. The UCL, equals 1.14 and the LCL equals 0 39 (Enter your responses rounded to four decimal places. If your answer for LC is negative, enter the value as o)

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