answer the marked ones

answer marked questions

. the 23 The school board is trying to evaluate muth produced to second-graders in five elementary schools as the county this year. A sample of the staditos and math tests in each elementary school yielded the follow P School No. of Test Ernes bl . 27 35 44 N 5 Constructe-chart for testemoes, and set the cool limits to co 997 of the random variation in tests. What does the curt tell you! Has the new math program beneffective:P - 562 Telephone inquiries of 100 IRS comentare moet und daily at random. Incidents of incorrect information or other reformities such as impoliteness to customers are recorded The data for last week follow Day No. of Nonefrites 1 Construct a 3-standard deviation chart of conformities Whut does the control chart tell you about the IRS telephone operator PX 25 The receivable department at Rick Wing Macacturing has been having difficulty getting customers to pay the full amount of their hills. Many custom complain that the Nih are not correct and do not reflect the materials that arrived frir receiving decks. The department has decided to implement Skins Willing process. To set up control charts. 10 samples of S0 Wanach were taken over a month's time the mos the bills checked against the bill of lading sent by the company's shipping department to determine the number of his that were not correct. Theme No. of Incorrect Balls Sample Na Noo Incorrect is Na 7 3 9 10 5 Determine the value of phar, the means fractice defective. Ther determine the control limits for the chart using a 99.735.com fidence level standard deviations. Is this process in control samples of How might you wile the quality fools docensed in Chapter 6 determine the source of the billing defects and where you might Mart your improvement efforts to eliminate the caused PX