Problem 1 – Election poll The incumbent governor of a province in Indonesia believes that...

Problem 1 – Election poll
The incumbent governor of a province in Indonesia believes that he will succeed in the upcoming regional election in winning more than 50% of the votes amongst the 13,324,525 registered voters. A random sample of 1,000 voters were selected. 510 people stated that they would vote for the governor. Estimate with 99% confidence the true proportion of voters who would vote for the governor.

a) You are recently hired as a junior data analyst working for the governor’s office. Specify the appropriate formula you would use to solve the problem. Provide a brief reason why you chose the formula.

b) Obtain the 99% confidence interval estimate of the true proportion of voters who would vote for the governor. Display working.

c) Provide an interpretation of the answers you obtained in part b) in the context of the problem.

d) Present brief statements of two or three sentences to the governor’s office with regard to the possibility of him winning the election on the basis of the interval estimation conducted. Is it very much conclusive that he will win the election? Why?

e) Assuming all of the other variables to do the calculation of confidence interval held constant, what would happen to the width of the interval when a lower sample size is used?

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

Problem 1 – Election poll The incumbent governor of a province in Indonesia believes that he...

Problem 1 – Election poll The incumbent governor of a province in Indonesia believes that he will succeed in the upcoming regional election in winning more than 50% of the votes amongst the 13,324,525 registered voters. A random sample of 1,000 voters were selected. 510 people stated that they would vote for the governor. Estimate with 99% confidence the true proportion of voters who would vote for the governor. a) You are recently hired as a junior data analyst...

The incumbent governor of a province in Indonesia believes that he will succeed in the upcoming...

The incumbent governor of a province in Indonesia believes that he will succeed in the upcoming regional election in winning more than 50% of the votes amongst the 13,000,000 registered voters. A random sample of 1,000 voters were selected. 510 people stated that they would vote for the governor. Estimate with 99% confidence the true proportion of voters who would vote for the governor. a) You are recently hired as a junior data analyst working for the governor’s office. Specify...

In the upcoming election the most recent poll, based on 750 respondents, predicts that the incumbent...

In the upcoming election the most recent poll, based on 750 respondents, predicts that the incumbent will be reelected with 62 percent of the votes. From the 750 respondents, how many indicated that they would not vote for the current Student Body President or indicated that they were undecided? In a research study investigated differences between male and female students. Based on the study results, we can assume the population mean and standard deviation for the GPA of male students...

A poll taken before an election finds that 42 of 80 people asked favored the incumbent...

A poll taken before an election finds that 42 of 80 people asked favored the incumbent candidate. What is the 99% confidence interval for the proportion of voters that favor the incumbent?

For a local election the probability of voters favoring the incumbent went from 46% on August...

For a local election the probability of voters favoring the incumbent went from 46% on August 01 to 52% on September 01 although only 38% favored him in both polls. What is the probability that a random voter who supported the incumbent on August 01 is still a supporter on September 01?

According to a recent poll 53 percent of Americans would vote for the incumbent president. If...

According to a recent poll 53 percent of Americans would vote for the incumbent president. If a random sample of 100 people results in 45 percent who would vote for the incumbent, test the claim that the actual percentage is 53 percent. Use a 0.03 significance level. show all 5 steps.

For spring 2013 senatorial election in Colorado between Democratic incumbent Allison Boxer and Republican challenger Carly...

For spring 2013 senatorial election in Colorado between Democratic incumbent Allison Boxer and Republican challenger Carly Fiorina, the CNN exit poll of 3870 voters indicated that 2180 (56.3%) of those voters voted for Boxer and 1690 (43.7%) voted for Fiorina or another candidate. Of the 9,534,523 Cali voters in the actual election, 54.7% voted for Boxer while 45.3% did not vote for Boxer (voted for Fiorina, other). a) Identify the data distribution. Use 0 for Fiorina/other; 1 for Boxer. b)...

A statewide poll was conducted between the governor race in Georgia between Democratic Stacey Abrams and...

A statewide poll was conducted between the governor race in Georgia between Democratic Stacey Abrams and Republican Brian Kemp. In the poll, Abrams had 46.9 percent of likely voters, and Kemp had 47.7 percent of likely voted. The results covered 1091 registered voters. Report the 95 percent confidence intervals for Abrams and Kemp. Do they overlap or not?

A pollster for an election believes that the age group and socio-economic class of a voter...

A pollster for an election believes that the age group and socio-economic class of a voter may be factors that affect the extent to which that voter will agree with a new range of policies of the current government. A two-way ANOVA test is conducted to test this. Three hypotheses are tested: Test 1 relates to whether age group is a significant factor, Test 2 relates to whether socio-economic class is a significant factor, and Test 3 relates to interaction...

You obtain the following results from an election poll. a) Liberals obtain 38% with a...

You obtain the following results from an election poll. a) Liberals obtain 38% with a sample size of 500.Will they receive over 40% support in the election b) Liberals obtain 51% with a sample size of 500000. Will they receive a majority vote in the election presuming that 50% is the threshold for a majority government.

Subjects