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Question: Consider the following sample data with mean and standard deviation of 20.5 and 5.4, respectively.
a. Using the goodness-of-fit test for normality, specify the competing hypotheses in order to determine whether or not the data are norm ally distributed.
b. Calculate the value of the test statistic.
c. At the 5% significance level, what is the critical value? What is the decision rule?
d. What is the conclusion?
On the basis of data provided by a Romac salary survey, the variance in annual salaries forseniors in public accounting firms is approximately 2.1
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In a large section of a statistics class, the points for the final exam are normally distributed with a mean of 72 and a standard deviation of 9. Find the lowest score on the final exam that would qualify a student for an A, a B and a C.
Let the following linear programming problem: Determine the optimal solution to this problem. Convert this problem standard LP form.
the number of yearly breakdowns for the power generator observed over the past 20 years at orlando utilities is
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Strong association but no correlation. Here is a data set that illustrates an important point about correlation:
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