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 the appropriate formula you would use to solve the problem. Provide a brief reason why you chose the formula. 1 mark

b) Obtain the 99% confidence interval estimate of the true proportion of voters who would vote for the governor. Display working. 3 marks

c) Provide an interpretation of the answers you obtained in part b) in the context of the problem. 1.5 marks

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? 1.5 marks

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...

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

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...

If a seller contracts to sell a painting that he believes is a child's painting but...

If a seller contracts to sell a painting that he believes is a child's painting but it turns out to be an undiscovered Picasso, also unbeknownst to the buyer at the time of purchase, then _______. A. the contract can be disavowed B. the contract can be rescinded C. this mutual mistake of value does not excuse the seller from the contract D. the contract is void E. this mutual mistake of value would excuse the seller from the contract

Dr. Palpatine teaches statistics at Coruscant University. He believes there are three types of classes he...

Dr. Palpatine teaches statistics at Coruscant University. He believes there are three types of classes he may encounter: (P) Poor classes, where only 70% of the students will be able to pass exam 1 in the course. (A) Average classes, where 85% of the students will be able to pass exam 1. (G) Good classes, where 95% of the students will be able to pass exam 1. Assuming Palpatine teaches a class of 35 students... If the class is poor...

Governor Cuomo's press conference he just announced that from a sample of 7,500 New Yorker's, 14.3%...

Governor Cuomo's press conference he just announced that from a sample of 7,500 New Yorker's, 14.3% tested positive for the Covid antibodies. (Note the presence of the antibodies indicates you have been infected with the virus.) The sample was taken in public places, for example at grocery stores, where individuals were asked if they would voluntarily be tested. I believe that the 14.3% infection rate woefully biased. Provide the reason and defined in the text and class notes and an...

Perot's business is booming. He believes he can now sell three times as many shirts and...

Perot's business is booming. He believes he can now sell three times as many shirts and can get a 35% discount in purchase price by wielding his new power. He suggests ordering 3,000 shirts every other month. Do you agree with him? What numbers would you show him to support your answer. If he promises to pay you one-half of any savings you can create, how much money would you make? Suppose you know that the annual backorder cost is...

A researcher is interested in the actions of football fans at tailgate parties. He believes there...

A researcher is interested in the actions of football fans at tailgate parties. He believes there is some relationship between what they do and their level of education. He does a survey of a group of tailgaters and finds that 19% had less than a high school degree, 60% had a high school diploma, and 21% had a college degree or higher. What is the probability that you would select at random a tailgater with a college degree from the...

Tim said that he believes there is an association between education and use of the Internet....

Tim said that he believes there is an association between education and use of the Internet. He collected data on the number of years of school and the number of hours spent on the Internet each day. The results are displayed in Table 2. Table 2: Tim’s Results Years of Education Number of Hours on the Internet 9 2 15 6 17 9 9 4 19 8 17 7 A.Find the correlation from Table 2. B.Is the correlation from Table...

he Iowa Energy are scheduled to play against the Maine Red Claws in an upcoming game...

he Iowa Energy are scheduled to play against the Maine Red Claws in an upcoming game in the National Basketball Association (NBA) G League. Because a player in the NBA G League is still developing his skills, the number of points he scores in a game can vary substantially. Assume that each player’s point production can be represented as an integer uniform random variable with the ranges provided in the following table: Player lowa Energy Maine Red Claws 1 [5,20] ...

Subjects