P-values and confidence intervals

Assignment Help Basic Statistics
Reference no: EM13105693

Out of a random sample of 500 individuals who are planning to vote in a student council election, 260 plan on voting for Jefferson and 240 plan on voting for Smith. Construct a 95% confidence interval for the proportion of votes that Jefferson will receive, and make a conclusion about Jefferson winning election.

Calculate a z-score and interpret the probability (using .05 as the alpha level) in order to make a conclusion about weather Jefferson will win. Lastly, Will Jefferson will probably win the election.

Reference no: EM13105693

Questions Cloud

Mean of the distribution of sample-means : A population consists of the following four values: 8, 10, 12, and 16. From this population, there are 6 different samples of size 2. The means of the 6 samples of size 2 are: 9, 10, 12, 11, 13, and 14. Compute the mean of the distribution of the ..
Determining p-values and confidence intervals : Construct a 95% confidence interval for the proportion of votes that Jefferson will receive, and make a conclusion about Jefferson winning election.
Describe step-by-step discrepancy in revenue : County A as well as County B are located equidistant from Business Z. The populations of County A and County B are the same. Income to Business Z is $500,000 per year from County A and $250,000 from County B. Describe step-by-step how you would an..
Explain tenets of progressivism and ways women reformers : Create the essay where you explain tenets of Progressivism and ways women reformers, African American leaders, and government officials put these principles to practice in their respective social.
P-values and confidence intervals : Out of a random sample of 500 individuals who are planning to vote in a student council election, 260 plan on voting for Jefferson and 240 plan on voting for Smith.
Standard error of the mean in this experiment : Assume a random sample of 16 gasoline stations is selected and their mean cost for regular gasoline is computed. What is the standard error of the mean in this experiment?
What are the cultural abd business challenges : What are the cultural, financial, political, technological and business challenges you expect to encounter
How news affect assumptions about the world : Discuss how the news you read or hear may affect your assumptions about the world. Is it possible to find balanced news sources?
Best point estimate for the population mean : Their average age was 19.1 years with a standard deviation of 1.5 years. What is the best point estimate for the population mean?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Using probability formulas-proportion of employees

Using the probability formulas, find the proportion of employees who either have MBAs or are managers.

  Finding the probability value using tree diagram

Draw a tree diagram representing the data. What is the probability that a vehicle stolen in this city will never be recovered?

  Trailers allocated by the deliveries

A haulage contractor has two loads to deliver to separate customers. He has 4 trailers of which 2 are new. If the trailers are randomly chosen for any particular delivery: (a) In how many ways can the trailers be allocated the deliveries?

  Fundamentals of qualtitative research study

Describe the unique fundamentals of a qualtitative research study, addressing the following:

  Representing the ratio scale of measurement

Could this information be viewed as representing the ratio scale of measurement? If so , explain why. If not, why not.

  Confidence interval to estimate the average number of days

Using these data, construct a 99% confidence interval to estimate the average number of days and excavator is rented to a client, and assume the number of days per rental is normally distributed in the population.

  Standardized to normal model with mean

Some IQ tests are standardized to normal model with mean of 100 and the standard deviation of 16. Draw a model for these IQ scores, clearly label it , showing what the 65-95-99.7 rule predicts about the score.

  Forecast-three periods average process

Which component of a time series is most likely to occur? Which component has a pattern that must be complete in a single year and repeat from year to year?

  Pros and cons of doctors using ethics consultations

Before getting into analyzing the data, let's consider the question of the pros and cons of doctors using ethics consultations with doctors, and other ethicists, trained to think and provide advice on ethical issues in healthcare.

  Confidence interval for the long-run proportion

Find a 95% confidence interval for the long-run proportion of new product placements?

  Confidence interval-balance of defaulted loans

A federal bank examiner is interest in estimating the mean outstanding defaulted loans balance of all defaulted loans over the last three years. Calculate a 90% confidence interval for the mean balance of defaulted loans over the past three years.

  Determining normal distribution sat scores

The average score on math portion of SAT was 516 in 2002. Assume that the math score of all students taking the SAT 2002 were normally distributed with a mean of 516 and a standard deviation of 90.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd