Questions And Answers

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 Question 1
1 out of 1 points
Questions 1 through 4 refer to the following:
According to the US Department of Health and Human Services, the percentage of adults who smoked cigarettes in 2011 was 19%. A survey of 500 adults taken in 2012 found 85 who smoke. The researcher is interested in finding evidence at the .05 significance level of a decrease from 2011 to 2012 in the proportion of US adults who smoke.
Which of the following pairs of hypotheses is suggested by the scenario described above?
Selected Answer: E.
H0: p ≥ 0.19 HA: p < 0.19
Correct Answer: B.
H0: p ≥ 0.19 HA: p < 0.19
 Question 2
1 out of 1 points
What is the value of the test statistic? Selected Answer: C.
-1.140
Correct Answer: C. …show more content…
Selected Answer: C.
0.5
Correct Answer: C.
0.5
 Question 21
1 out of 1 points
What is the correct decision for 9.19? Selected Answer: A.
Reject H0
Correct Answer: A.
Reject H0
 Question 22
1 out of 1 points
What is the value of the test statistic for 9.47? Selected Answer: B.
2.75
Correct Answer: D.
2.75
 Question 23
1 out of 1 points
Which of the following is(are) the correct critical value(s) for 9.33? Selected Answer: d.
1.753
Correct Answer: d.
1.753
 Question 24
1 out of 1 points
Which of the following correctly characterizes the p-value for 9.49? Selected Answer: A. p-value < .01
Correct Answer: A. p-value < .01
 Question 25
1 out of 1 points
What is the value of the test statistic for 9.45? Selected Answer: D.
2.777
Correct Answer: D.
2.777
 Question 26
1 out of 1 points
What is(are) the correct critival value(s) for 9.59? Selected Answer: D.
-1.65
Correct Answer: C.
-1.65
 Question 27
1 out of 1 points
Which of the following correctly characterizes the p-value for 11.27? Selected Answer: D. p-value > .10
Correct Answer: D. p-value > .10
 Question 28
1 out of 1 points
What is the value of the test statistic for 11.11? Selected Answer: D.
10.841
Correct Answer: D.
10.841
 Question 29
1 out of 1 points
Which of

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