Commercials for chewing gum make claims about how long the flavor will last. In fact, some commercials claim that the flavor lasts too long, affecting sales and profit. Let€™s put these claims to a test. Imagine a student decides to compare four different gums using five participants. Each randomly selected participant was asked to chew a different piece of gum each day for 4 days, such that at the end of the 4 days, each participant had chewed all four types of gum. The order of the gums was randomly determined for each participant. After 2 hours of chewing, participants recorded the intensity of flavor from 1 (not intense) to 9 (very intense). Here are some hypothetical data:

a. Conduct all six steps of the hypothesis test.

b. Are any additional tests warranted? Explain your answer.

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Person 2 3 5 Gum 1 4 3 4 4 9. Gum 2 9. Gum 3 4 Gum 4 2. 3. 2. + 00 in 2.