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The National Quality Research Center at the University of Michigan provides a quarterly measure of consumer opinions about products and services (The Wall Street Journal, February 18, 2003). A survey of 10 restaurants in the Fast Food/Pizza group showed a sample mean customer satisfaction index of 71. Past data indicate that the population standard deviation of the index has been relatively
stable with σ = 5
a. What assumption should the researcher be willing to make if a margin of error is desired?
b. Using 95% confidence, what is the margin of error?
c. What is the margin of error if 99% confidence is desired?
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We have two applicants who are applying for a job. They both took the high school exit exam, but different ones. Shannon took the ACT and scored 26, Frank took the SAT scored 1350.
In a mathematics examination the average grade was 82 and the standard deviation was 5. all students with grade from 88 to 94 received grade of B. if the grade are approximately no
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on july 2,ali collected cash of Rs 700 from accounts receivable ,july 9 purchased gym equipments for 2175, paying 5500 in cash and charging the remainder on the company 30 day acco
Amortized cost The par value of its decision enhanced or lowered by any unamortized top quality or lower price.
standard material qty per unit- 2 kg standard price per kg - 4 rs actual value of material purchased- 4000 rs closing stock- 200 kg actual usage- 2.5 kg finished stock sold- 200 u
1. What type of correlation coefficient would you use to examine the relationship between the following variables? Explain why you have selected the correlation coefficients. A.
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