Consumer Reports evaluated and rated 46 brands of toothpaste. One attribute examined in the study was whether
Question:
a. Give the null and alternative hypotheses for testing whether the true proportion of toothpaste brands with the ADA seal verifying effective decay prevention is less than .5.
b. Locate the p-value on the Minitab printout below.
c. Make the appropriate conclusion using α = .10.
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Related Book For
Statistics For Business And Economics
ISBN: 9780134506593
13th Edition
Authors: James T. McClave, P. George Benson, Terry Sincich
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