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Consider the following data. The summary statistics, histogram, and normal quantile plot were generated by Minitab.
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(a) Does the histogram indicate normality for the data distribution? Explain.
(b) Does the normal quantile plot indicate normality for the data distribution? Explain.
(c) Compute the interquartile range and check for outliers.
(d) Compute Pearson's index. Does the index value indicate skewness?
(e) Using parts (a) through (d), would you say the data are from a normal distribution?
Looking carefully at the stepwise regression model, you can see that the value of the slope coefficient for variable x2, family income, changes as a new variable is added to the regression model. Discuss why this change takes place.
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First step of analytical hierarchy process doesn't include?
The McNemar test is a test on a 2x2 classification table when you want to test the difference between paired proportions. Chi-square test for 2X2 tables compares the tallies or counts of categorical responses between two (or more) independent grou..
an internet retailer stocks a popular electronic toy at a central warehouse that supplies the eastern united states.
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Long a market leader in the production of heavy machinery, the Spellman Corporation recently has been enjoying a steady increase in the sales of its new lathe. The sales over the past 10 months are shown below.
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