) Before the last presidential debates, 50% of registered votes indicated they were planning to vote...

) Before the last presidential debates, 50% of registered votes indicated they were planning to vote for the incumbent president. In a recent poll of 1200 registered voters after the debates, 636 indicated they are planning to vote for the incumbent president. Has there been a significant increase in the proportion of registered voters who are planning to vote for the incumbent president? a. State the null and alternative hypotheses to be tested. b. Compute the test statistic. c. The null hypothesis is to be tested using α = 0.05. Determine the critical value(s) for this test. d. What do you conclude? e. Compute the p-value.

Expert Solution

Dear your satisfaction is more important... So if you are satisfied with my explanations please support me... Please THUMBS UP... Thanks in advance for your support and love...

orchestra answered 2 years ago

Before the last presidential debates, 50% of registered votes indicated they were planning to vote for...

Before the last presidential debates, 50% of registered votes indicated they were planning to vote for the incumbent president. In a recent poll of 1200 registered voters after the debates, 636 indicated they are planning to vote for the incumbent president. Has there been a significant increase in the proportion of registered voters who are planning to vote for the incumbent president? State the null and alternative hypotheses to be tested. Compute the test statistic. The null hypothesis is to...

In a sample of 500 people, 325 indicated they would vote in the next presidential election....

In a sample of 500 people, 325 indicated they would vote in the next presidential election. construct a 95% confidence interval estimate for the proportion of people who will vote in the next presidential election.

A recent study indicated of 50 cdddvcvvo people indicated that 53.5% of people vote. Test the...

A recent study indicated of 50 cdddvcvvo people indicated that 53.5% of people vote. Test the Hypothesis at the α =.05 level that the proportion of people that vote is > 50%

Sixty-five percent of registered voters, voted in the last presidential election. A researcher surveyed 1200 registered...

Sixty-five percent of registered voters, voted in the last presidential election. A researcher surveyed 1200 registered voters and found that 700 voted at the midterm elections. Can the researcher say that the proportion of the midterm election voters is different from the presidential elections at a 2% level of significance? a) State the distribution you will use and why? b) State the null and Alternate Hypothesis. Identify the claim. c)Find the critical value. d)find the test statistic and the P-Value...

A statistics professor asked her students whether or not they were registered to vote. In a...

A statistics professor asked her students whether or not they were registered to vote. In a sample of 50 of her students (randomly sampled from her 700 students), 35 said they were registered to vote. Questions 1 - 6 pertain to scenario 1. Question 1 (1 point) Which of the following properly explains the 95% confidence interval for the true proportion of the professor's students who were registered to vote? Question 1 options: a) We are 95 % confident that...

In a random sample of 50 college seniors, 18 indicated that they were planning to pursue a graduate degree.

In a random sample of 50 college seniors, 18 indicated that they were planning to pursue a graduate degree. Find a 98% confidence interval for the true proportion of all college seniors planning to pursue a graduate degree, and interpret the result, and state any assumptions you have made.

Nine hundred registered voters are surveyed before a presidential election. Four hundred and eightysix say they...

Nine hundred registered voters are surveyed before a presidential election. Four hundred and eightysix say they will vote for candidate X. Construct a 95% confidence interval for the proportion of registered voters who will vote for candidate X.

Last year, 50% of MNM, Inc., employees were female. It is suspected that there has been...

Last year, 50% of MNM, Inc., employees were female. It is suspected that there has been a reduction in the percentage of females in the company. This year, in a random sample, 400 employees were male, 380 were female. a. State the null and the alternative hypotheses. b. At the .05 level using the critical value approach, determine if there has been a significant reduction in the proportion of females. c. Show that the p-value approach results in the same...

A government Bureau claims that more than 50% of U.S. tax returns were filed electronically last...

A government Bureau claims that more than 50% of U.S. tax returns were filed electronically last year. A random sample of 150 tax returns for last year contained 86 that were filed electronically. Test the Bureau's claim at a 5% level of significance. What is your conclusion? Report the p-value for this test.

When you administered the screening test last year, 45% were rated unacceptable, 5% fair, and 50%...

When you administered the screening test last year, 45% were rated unacceptable, 5% fair, and 50% excellent. Doing further analysis, you discovered that of the 45% who rated as unacceptable on the test, 90% of them really are unacceptable, 7% are fair, and 3% are excellent. Of the 5% who were rated as fair on the test, 95% are fair, 3% are unacceptable, and 2% are excellent. Of the 50% who rated as excellent on the exam, 5% are unacceptable,...

Question