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Questions 24-27 are related to the following One of the different statistics reported by the Centers for Disease Control regarding incidence of

Questions 24-27 are related to the following

One of the different statistics reported by the Centers for Disease Control regarding incidence of obesity among adults in the United States provides that 28% of men with college degree are obese. The study also reports that 31.8% of men without a college degree are obese. Assume the latter statistic is based on a sample of 1015 men without a college degree.

Based on α = 0.05, does the data provide statistically significant evidence that the incidence of obesity among men without a college degree is greater than that among those with a college degree?

24 This involves which of the following hypothesis statements?

a H₀: π ≥ 0.28

b H₀: π ≤ 0.28

c H₁: π < 0.28

d H₁: π > 0.28

e Both b and d are correct.

25 The test statistic for the hypothesis test is,

a 1.94

b 2.04

c 2.25

d 2.70

26 The p-value for the test is,

a 0.0262 The incidence of obesity among men without a college degree is not greater.

b 0.0122 The incidence of obesity among men without a college degree is not greater.

c 0.0035 The incidence of obesity among men without a college degree is greater

d 0.0016 The incidence of obesity among men without a college degree is greater

27 Regardless of how you answered the previous question, which of the following statements is correct?

a If the proportion of men without a college degree is at most 0.28 and the hypothesis test leads you to conclude that it is greater than 0.28, the you have committed a Type II error.

b If the proportion of men without a college degree is greater than 0.28 and the hypothesis test leads you to conclude that it is at most 0.28, the you have committed a Type II error.

c If the proportion of men without a college degree is greater than 0.28 and the hypothesis test leads you to conclude that it is at most 0.28, the you have committed a Type I error.

d If the proportion of men without a college degree is less than 0.28 and the hypothesis test leads you to conclude that it is at least 0.28, the you have committed a Type I error.

Top Answer

24) This involves which of the following hypothesis statements? e Both b and d are correct. 25) The test statistic for the... View the full answer

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Ho: p  ≤  0.28 H 1 : p&gt;0.28 Calculated Z = 2.7 Critical value of Z = +1.645 Cacl. Z &gt;... View the full answer

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