The Gallup organization conducted a phone survey in October 2020. Researchers at Gallup chose a random sample of 1020 US registered adult voters, aged 18 or older who lived in the continental U.S. The random sample was selected by a computer; 400 men and 620 women were selected in the sample. The 1020 American adults were asked to respond to the following Yes or No question: "Are you confident that mail-in ballots are being counted correctly in elections." Gallup wishes to determine if the percentage of women who answer "Yes" to the question is higher than the percentage of men who answer "Yes" to the question. Assume all checks have been verified. 11. Pick the hypotheses most appropriate to deal with the problem above. Note that "W" represents women and "M" represents men. a) Ho: Pw - Pm = 0 Ho: Pw - Pm <0 c) Ho: Pw - Pm = 0 Ho: Pw - Pm #0 b) 13. This problem deals with which of the following: a) Two proportions b) One proportion d) Ho: Pw-Pm=0 Ho: Pw-Pm > 0 Can't answer this question based on the answer given. 12. If the p-value for the test is 0.0295, what would be the test statistic for the test (assume the test statistic is positive)? a) 1.89 b) 1.96 c) 1.67 d) 2.05 c) Two means d) One mean 14. If the p-value for the test is 0.1102, choose the most appropriate conclusion for the hypothesis test (Assume a significance level of 10%). a) There is sufficient evidence to conclude that the proportion of women who answered "Yes" to the question is smaller than the proportion of men who answered "Yes" to the question. b) There is sufficient evidence to conclude that the proportion of women who answered "Yes" to the question is larger than the proportion of men who answered "Yes" to the question. c) There is insufficient evidence to conclude that the proportion of women who answered "Yes" to the question is smaller than the proportion of men who answered "Yes" to the question. d) There is insufficient evidence to conclude that the proportion of women who answered "Yes" to the question is larger than the proportion of men who answered "Yes" to the question.
The Gallup organization conducted a phone survey in October 2020. Researchers at Gallup chose a random sample of 1020 US registered adult voters, aged 18 or older who lived in the continental U.S. The random sample was selected by a computer; 400 men and 620 women were selected in the sample. The 1020 American adults were asked to respond to the following Yes or No question: "Are you confident that mail-in ballots are being counted correctly in elections." Gallup wishes to determine if the percentage of women who answer "Yes" to the question is higher than the percentage of men who answer "Yes" to the question. Assume all checks have been verified. 11. Pick the hypotheses most appropriate to deal with the problem above. Note that "W" represents women and "M" represents men. a) Ho: Pw - Pm = 0 Ho: Pw - Pm <0 c) Ho: Pw - Pm = 0 Ho: Pw - Pm #0 b) 13. This problem deals with which of the following: a) Two proportions b) One proportion d) Ho: Pw-Pm=0 Ho: Pw-Pm > 0 Can't answer this question based on the answer given. 12. If the p-value for the test is 0.0295, what would be the test statistic for the test (assume the test statistic is positive)? a) 1.89 b) 1.96 c) 1.67 d) 2.05 c) Two means d) One mean 14. If the p-value for the test is 0.1102, choose the most appropriate conclusion for the hypothesis test (Assume a significance level of 10%). a) There is sufficient evidence to conclude that the proportion of women who answered "Yes" to the question is smaller than the proportion of men who answered "Yes" to the question. b) There is sufficient evidence to conclude that the proportion of women who answered "Yes" to the question is larger than the proportion of men who answered "Yes" to the question. c) There is insufficient evidence to conclude that the proportion of women who answered "Yes" to the question is smaller than the proportion of men who answered "Yes" to the question. d) There is insufficient evidence to conclude that the proportion of women who answered "Yes" to the question is larger than the proportion of men who answered "Yes" to the question.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:The Gallup organization conducted a phone survey in October 2020. Researchers at Gallup chose a
random sample of 1020 US registered adult voters, aged 18 or older who lived in the continental
U.S. The random sample was selected by a computer; 400 men and 620 women were selected in
the sample. The 1020 American adults were asked to respond to the following Yes or No question:
"Are you confident that mail-in ballots are being counted correctly in elections." Gallup wishes to
determine if the percentage of women who answer "Yes" to the question is higher than the
percentage of men who answer "Yes" to the question. Assume all checks have been verified.
11. Pick the hypotheses most appropriate to deal with the problem above. Note that "W" represents
women and "M" represents men.
a)
Ho: Pw - Pm = 0
Ho: PwPm <0
Ho: PwPm = 0
Ho: Pw - Pm 0
b)
13. This problem deals with which of the following:
a) Two proportions
b) One proportion
d)
Ho: Pw - Pm = 0
Ho: Pw - Pm > 0
Can't answer this question based
on the answer given.
12. If the p-value for the test is 0.0295, what would be the test statistic for the test (assume the test
statistic is positive)?
a) 1.89
b) 1.96
d) 2.05
c) 1.67
c) Two means
d) One mean
14. If the p-value for the test is 0.1102, choose the most appropriate conclusion for the hypothesis
test (Assume a significance level of 10%).
a) There is sufficient evidence to conclude that the proportion of women who answered "Yes"
to the question is smaller than the proportion of men who answered "Yes" to the question.
b) There is sufficient evidence to conclude that the proportion of women who answered "Yes"
to the question is larger than the proportion of men who answered "Yes" to the question.
c) There is insufficient evidence to conclude that the proportion of women who answered "Yes"
to the question is smaller than the proportion of men who answered "Yes" to the question.
d) There is insufficient evidence to conclude that the proportion of women who answered "Yes"
to the question is larger than the proportion of men who answered "Yes" to the question.
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