Coffee: A popular chain of cafes has been receiving online complaints about Select one answer. one...
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Coffee: A popular chain of cafes has been receiving online complaints about Select one answer. one store location. Regular customers complained that the staff at this location 10 points consistently underfill their cups of coffee. The owner of the chain will personally visit the location to meet with the staff to determine if more than 10% of the 16 ounce cups are underfilled by 1 fluid ounce. She arranges to have "mystery shoppers" visit the store. Mystery shoppers are people who are paid to pose as a regular customer and provide feedback to the owner about customer service. After 100 mystery shop visits, she finds that 18 of the 16 ounce cups of coffee were underfilled. She plans to test the hypotheses Ho: p= 0.10 versus Ha: p > 0.10. What is the test statistic? z = -2.67 A. B. O z = 2.08 C. O z= -2.08 D. z = 2.67 Coffee: A popular chain of cafes has been receiving online complaints about Select one answer. one store location. Regular customers complained that the staff at this location 10 points consistently underfill their cups of coffee. The owner of the chain will personally visit the location to meet with the staff to determine if more than 10% of the 16 ounce cups are underfilled by 1 fluid ounce. She arranges to have "mystery shoppers" visit the store. Mystery shoppers are people who are paid to pose as a regular customer and provide feedback to the owner about customer service. After 100 mystery shop visits, she finds that 18 of the 16 ounce cups of coffee were underfilled. She plans to test the hypotheses Ho: p= 0.10 versus Ha: p > 0.10. What is the test statistic? z = -2.67 A. B. O z = 2.08 C. O z= -2.08 D. z = 2.67
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Analyzing Data And Making Decisions Statistics For Business Microsoft Excel 2010 Updated
ISBN: 9780132924962
2nd Edition
Authors: Judith Skuce
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