Question 2 In the spring of 2014, the U.S. Congress considered a bill that would prevent Americans from suing fast-food giants like McDonald's for making them overweight. Although the fast-food industry may not be to blame, a study by Children's Hospital in Boston reports that about two-thirds of adult Americans and at least 18% of children are overweight. To test this claim, a random sample of 100 children is selected, and 16 of them are found to be overweight. Is there sufficient evidence to indicate that the percentage reported by Children's Hospital is incorrect? Test at a=0.01 level. a)Step 1: State the null and alternative hypotheses. b)Step 2: Write down the appropriate test statistics (formula) but first check assumptions. c)Step 3: Write down the rejection region of your test. d)Step 4: Compute the value of the test statistic

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Question 2
In the spring of 2014, the U.S. Congress considered a bill that would prevent Americans from suing fast-food giants like
McDonald's for making them overweight. Although the fast-food industry may not be to blame, a study by Children's
Hospital in Boston reports that about two-thirds of adult Americans and at least 18% of children are overweight. To test
this claim, a random sample of 100 children is selected, and 16 of them are found to be overweight. Is there sufficient
evidence to indicate that the percentage reported by Children's Hospital is incorrect? Test at a=0.01 level.
a)Step 1: State the null and alternative hypotheses.
b)Step 2: Write down the appropriate test statistics (formula) but first check assumptions.
c)Step 3: Write down the rejection region of your test.
d)Step 4: Compute the value of the test statistic
e) Step 5: State your conclusion:
(i) Reject Ho
Do not reject Ho (Just circle)
(ii) In one sentence apply the results to the problem.
f)What type of mistake could you have made in your hypothesis test? (Just circle the correct answer)
Туре I
Туре II
None
g) Step 6: (i)Compute the p- value for this test.
(ii) Based on your p-value , what is your decision:
Reject Ho
Do not reject Ho
(Just circle the correct answer)
Transcribed Image Text:Question 2 In the spring of 2014, the U.S. Congress considered a bill that would prevent Americans from suing fast-food giants like McDonald's for making them overweight. Although the fast-food industry may not be to blame, a study by Children's Hospital in Boston reports that about two-thirds of adult Americans and at least 18% of children are overweight. To test this claim, a random sample of 100 children is selected, and 16 of them are found to be overweight. Is there sufficient evidence to indicate that the percentage reported by Children's Hospital is incorrect? Test at a=0.01 level. a)Step 1: State the null and alternative hypotheses. b)Step 2: Write down the appropriate test statistics (formula) but first check assumptions. c)Step 3: Write down the rejection region of your test. d)Step 4: Compute the value of the test statistic e) Step 5: State your conclusion: (i) Reject Ho Do not reject Ho (Just circle) (ii) In one sentence apply the results to the problem. f)What type of mistake could you have made in your hypothesis test? (Just circle the correct answer) Туре I Туре II None g) Step 6: (i)Compute the p- value for this test. (ii) Based on your p-value , what is your decision: Reject Ho Do not reject Ho (Just circle the correct answer)
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