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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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Present the survey methodology which is going to be used by describing primary and secondary data collection methods, population, sampling frame and sampling method/s, sample size
How much it will cost to get an assignment
A teacher is interested in comparing the effects of 3 different parts of rehearsal methods (Rote rehearsal, Imagery, and Story) on number of words recalled. Participants are random
Stratified Sampling: If the population from which a sample is to be drawn does not constitute a homogenous group, then stratified sampling technique is applied so as to obtain a re
accounting equation.
. Good day, Using 4-inch pole caps and a Mettler M5 balance, I got all the values required in order to calculate the magnetic susceptibility of several inorganic compounds such as
theorems of probability ..
who is the mathematician who invented replacement theory of operation research
a). Show that if a random variable has a uniform density with the parameters a and ß, the probability that it will take on a value less than a+p(ß-a) is equal to p b). Prove that t
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