Question

Questions 25-27 are related to the following |
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One of the different statistics reported by the Centers for Disease Control regarding incidence of obesity among adults in the United States provides that 29% of men with college degree are obese. The study also reports that 32.1% of men without a college degree are obese. Assume the latter statistic is based on a sample of 1025 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? | ||||||||

25 | The test statistic for the hypothesis test is: (Your answer may differ very slightly due to rounding you use.) | |||||||

a | 2.19 | |||||||

b | 2.34 | |||||||

c | 2.48 | |||||||

d | 2.71 | |||||||

26 | The p-value for the test is, | |||||||

a | 0.0062 | The incidence of obesity among men without a college degree is greater | ||||||

b | 0.0143 | The incidence of obesity among men without a college degree is greater | ||||||

c | 0.0435 | The incidence of obesity among men without a college degree is not greater. | ||||||

d | 0.0526 | The incidence of obesity among men without a college degree is not 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 0.29 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 0.29 and the hypothesis test leads you to conclude that it is at most 0.29, the you have committed a Type I error. | |||||||

c | If the proportion of men without a college degree is greater than 0.29 and the hypothesis test leads you to conclude that it is at most 0.29, the you have committed a Type II error. | |||||||

d | If the proportion of men without a college degree is less than 0.29 and the hypothesis test leads you to conclude that it is at least 0.29, the you have committed a Type I error. | |||||||

Answer #1

In order to investigate the difference between mean job tenure
in years among workers who have a college
degree and
those who do not, random samples of each type of worker were
taken. A random sample of 16
workers
with a college degree had a mean of 5.7 years with a standard
deviation of 1.3. A random sample
of 21
workers without a college degree had a mean of 5.0 years with a
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Physicians at a college campus health clinic are concerned about
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In recent years more people have been working past the age of
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QUESTION 10
Question 10-12 are based on the following:
In recent years more people have been working past the age of
65. In 2005, 27% of people aged 65–69 worked. A recent report from
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claimed that the percentage working had increased (USA
Today, November 16, 2012). The findings reported by the OECD
were consistent with taking a sample of 600 people aged 65-69 and
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Develop...

****PLEASE ANSWER ALL QUESTIONS****
Question 12 (1 point)
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The events watching soccer and watching football
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a. Mutually exclusive and independent.
b. Independent only.
c. Mutually exclusive only.
d. Neither mutually exclusive nor independent.
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