Homework Answers
Yes because In new election, they get more than 50% voters.
This can also solved by method fo testing for significance of proportion of mean.
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Question 32 (1 point) In a previous month's political poll, 50% of registered voters were in...
Question 18 (1 point) In a survey of 1123 registered voters, 584 were in support of...
Question 18 (1 point) In a survey of 1123 registered voters, 584 were in support of Joe Biden for president. What is a point estimate for p, the true proportion of registered voters in support of Joe Biden for president? 584 1123 1123 584 There is not enough information to answer the question. There is no such point estimate. Drevious Page Next Page Page 18 of 34
In a random sample of 100 registered voters, 20 say they plan to vote for Candidate A. Determine a 95% confidence interval for the proportion of all the registered voters who will vote for Candida...
In a random sample of 100 registered voters, 20 say they plan to vote for Candidate A.Determine a 95% confidence interval for the proportion of all the registered voters who will vote for Candidate A.You are interested in knowing support for candidate by gender to provide strategic advice to candidate B. Suppose your guess based on previous knowledge is that female support for candidate B is around 20 percent, and male support for candidate B is around 50 percent. Suppose...
A political strategist believes that 58% of voters in a certain state support his candidate. He...
A political strategist believes that 58% of voters in a certain state support his candidate. He then commisions a poll of 800 voters and 53% of them support his candidate. Is there evidence at the .05 level of significance to refute the strategist's belief? No, because the test value - 1.69 is in the noncritical region. Yes, because the test value - 3.15 is in the critical region. O No, because the test value - 3.15 is in the noncritical...
(1 point) Assume that adults were randomly selected for a poll. They were asked if they...
(1 point) Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos. Of those polled, 481 were in favor, 400 were opposed, and 116 were unsure. A politician claims that people don't really were unsure, and use a 0.05 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5....
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a SRS of n = 1400 registered voters and found that 720 would vote for the Republican candidate. Let p represent the proportion of registered voters in the state who would vote for the Republican candidate. We test Ho: p= .50 H:p>.50 (a) What is the z-statistic for this test? (b) What is the P-value of the test? (6 points) A new...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a SRS of n = 1400 registered voters and found that 720 would vote for the Republican candidate. Let p represent the proportion of registered voters in the state who would vote for the Republican candidate. We test Hop=.50 H.:P > .50 (a) What is the 2-statistic for this test? (b) What is the P-value of the test? (6 points) A new...
1. When posed with the question "Do you believe the Loch Ness monster exists," out of...
1. When posed with the question "Do you believe the Loch Ness monster exists," out of 21,346 point) responses, 64% were "yes." Using a 0.01 significance level to test a claim that most people believe in the Loch Ness monster, a P-value of 0.0001 is found. State the initial conclusion and final conclusion of the claim. Reject the null hypothesis; there is sufficient evidence to support the claim that most people believe in the Loch Ness monster Reject the null...
having trouble with this one Previous Problem List Next 1 point) A study is conducted to...
having trouble with this one
Previous Problem List Next 1 point) A study is conducted to determine if a newly designed text book is more helpful to learning the material than the old edition. The mean score on the final exam for a course using the old edition is 75. Ten randomly selected people who used the new text took the final exam. Their scores are shown in the table below. Person ABCDEFGHIJ Test Score 73 95 86 82 88...
Please do all questions... Six hundred registered voters were surveyed and asked their political affiliation and...
Please do all questions...
Six hundred registered voters were surveyed and asked their political affiliation and whether they support the idea of the Federal Government investing a portion of their social security contributions in the stock market. A summary of the survey is given in the table. If a voter is selected at random, what is the probability that the voter is a republican? Political Affiliation Republican Response Democrat Independent Totals Yes 35 90 10 135 No 165 100 200...
webwork/math243spring-mcginnis / week_10b_-_ch23_comparing_two_proportions / 3 Week 10b - Ch23 Comparing Two Proportions: Problem 3 Previous Problem...
webwork/math243spring-mcginnis / week_10b_-_ch23_comparing_two_proportions / 3 Week 10b - Ch23 Comparing Two Proportions: Problem 3 Previous Problem List Next (1 point) Independent random samples, each containing 70 observations, were selected from two populations. The samples from populations 1 and 2 produced 48 and 36 successes, respectively. Test Ho: P1-P) = 0 against H.: 01-P). Use a = 0.08. (a) The test statistics ems b) The P-value is (c) The final conclusion is A. We can reject the pull hypothesis that (1-P)...
Question 18 (1 point) In a survey of 1123 registered voters, 584 were in support of Joe Biden for president. What is a point estimate for p, the true proportion of registered voters in support of Joe Biden for president? 584 1123 1123 584 There is not enough information to answer the question. There is no such point estimate. Drevious Page Next Page Page 18 of 34
A political strategist believes that 58% of voters in a certain state support his candidate. He then commisions a poll of 800 voters and 53% of them support his candidate. Is there evidence at the .05 level of significance to refute the strategist's belief? No, because the test value - 1.69 is in the noncritical region. Yes, because the test value - 3.15 is in the critical region. O No, because the test value - 3.15 is in the noncritical...
(1 point) Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos. Of those polled, 481 were in favor, 400 were opposed, and 116 were unsure. A politician claims that people don't really were unsure, and use a 0.05 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5....
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a SRS of n = 1400 registered voters and found that 720 would vote for the Republican candidate. Let p represent the proportion of registered voters in the state who would vote for the Republican candidate. We test Ho: p= .50 H:p>.50 (a) What is the z-statistic for this test? (b) What is the P-value of the test? (6 points) A new...
(4 points) A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a SRS of n = 1400 registered voters and found that 720 would vote for the Republican candidate. Let p represent the proportion of registered voters in the state who would vote for the Republican candidate. We test Hop=.50 H.:P > .50 (a) What is the 2-statistic for this test? (b) What is the P-value of the test? (6 points) A new...
1. When posed with the question "Do you believe the Loch Ness monster exists," out of 21,346 point) responses, 64% were "yes." Using a 0.01 significance level to test a claim that most people believe in the Loch Ness monster, a P-value of 0.0001 is found. State the initial conclusion and final conclusion of the claim. Reject the null hypothesis; there is sufficient evidence to support the claim that most people believe in the Loch Ness monster Reject the null...
having trouble with this one
Previous Problem List Next 1 point) A study is conducted to determine if a newly designed text book is more helpful to learning the material than the old edition. The mean score on the final exam for a course using the old edition is 75. Ten randomly selected people who used the new text took the final exam. Their scores are shown in the table below. Person ABCDEFGHIJ Test Score 73 95 86 82 88...
Please do all questions...
Six hundred registered voters were surveyed and asked their political affiliation and whether they support the idea of the Federal Government investing a portion of their social security contributions in the stock market. A summary of the survey is given in the table. If a voter is selected at random, what is the probability that the voter is a republican? Political Affiliation Republican Response Democrat Independent Totals Yes 35 90 10 135 No 165 100 200...
webwork/math243spring-mcginnis / week_10b_-_ch23_comparing_two_proportions / 3 Week 10b - Ch23 Comparing Two Proportions: Problem 3 Previous Problem List Next (1 point) Independent random samples, each containing 70 observations, were selected from two populations. The samples from populations 1 and 2 produced 48 and 36 successes, respectively. Test Ho: P1-P) = 0 against H.: 01-P). Use a = 0.08. (a) The test statistics ems b) The P-value is (c) The final conclusion is A. We can reject the pull hypothesis that (1-P)...
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