Question
Fresh Donuts A donut company claims that their donuts remain fresh for more than 2 days on average A donut watchdog organization samples 12 donuts
Fresh Donuts A donut company claims that their donuts remain fresh for more than 2 days on average A donut watchdog organization samples 12 donuts and finds that on average they remain fresh 2 8 days with a standard deviation of 1 1 days Evaluate the company s claim using a hypothesis test Use a 5 level of significance Assume that donut freshness follows a normal distribution a Write the hypotheses for the test OH H 2 Ha 2 O Ho H 2 8 H 2 8 O Ho 2 8 Ha 2 8 OH 2 Ha 2 O Ho 2 Ha 2 O Ho H 2 8 Ha H 2 8 b Compute the p value for the test P round to four decimal places c What is the final conclusion O There is sufficient evidence to support the company s claim O There is sufficient evidence to reject the company s claim There is not sufficient evidence to support the company s claim There is not sufficiel
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