In order to compare the life expectancies of three different brands of printers, eight printers of each brand were randomly selected. Information regarding the three brands is shown below. 
a.Compute the overall mean 
.
b.State the null and alternative hypotheses to be tested.
c.Show the complete ANOVA table for this test including the test statistic.
d.The null hypothesis is to be tested at 95% confidence. Determine the critical value for this test. What do you conclude?
e.Determine the p-value and use it for the test.
Definitions:
Complete Blood Count
A blood panel frequently ordered as part of a comprehensive medical evaluation, measuring various components, such as red and white blood cells and platelets.
Bowel Training
A program aimed at helping individuals develop regular bowel movements through scheduled toilet trips and lifestyle changes.
Docusate Sodium
A medication used as a stool softener to prevent and treat constipation by increasing water absorption in the intestine.
Bowel Continence
The ability to control bowel movements, and the capacity to hold stools until reaching a toilet.
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