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Quaker Oats is contemplating changing the shape of its box from the quaint cylinder presently in use. Different random samples were selected from five stores of similar size in the same region, and one of the candidate boxes was substituted for the cylinder for several days. The following results were obtained for the total number of boxes sold.
Box Shape
Store Pyramid Rectangle Cube
1 110 57 92
2 85 65 81
3 69 73 66
4 97 49 71
5 78 77 70
a. Determine the degrees of freedom for the numerator and denominator
b. Determine the critical value of the test statistic and identify the acceptance and
c. rejection regions using an α = .05 significance level.
d. Determine the treatments and the error sum of square. Using these values find the total sum of squares.
e. Construct the ANOVA table and compute the F value
f. Should Ho that the mean sales are identical regardless of the box shape be accepted or rejected?
Determine the probability that a randomly selected sample of 31 patients would produce an average diameter of 6.6 mm or less for the non affected tendon?
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The mean annual salary paid to all employees in a company was EURO 30.000. The mean annual salaries paid to male and female employees of the company were EURO 32.000, and 24.000, respectively. Determine the percentage of males and females employed..
Using ANOVA, determine if there is a significant difference in the six year graduation rate by type.
An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was $275.66 with a standard deviation of $78.11.
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Determine regression line for predicting January temperature from latitude.
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