What are the expected value-standard deviation

Assignment Help Other Subject
Reference no: EM13337871

A population of 1,000 student spends an average of $10.50 aday on dinner. The standard deviation of the expenditure is $3 . Asimple random sample of 64 students is taken.

A. What are the expected value , standard deviation, and shapeof the samling distribution of the sample mean?

B. What is the probability that the simple random sample willprovide a sample mean within $.50 of the population

Reference no: EM13337871

Questions Cloud

Produces the maximum revenue : Quink Inc has determined that the price they can charge for quinks depends on the number produced and is given by the equation p = 60e-0.004x, where x is the number produced in thousands. What value of x produces the maximum revenue?
Means of communication used in business world : Write a note on all means of communication used in business world in these days.
Residents of a locality along with aquestionnaire : You want to conduct a survey about your dairy product samples which you have recently distributed in a respective society; write arequest letter to all the residents of a locality along with aquestionnaire. The information provided by them will help ..
Estimate population mean if the population standard : Find the minimun sample size to estimate a population mean if the population standard deviation is 5.2, the confidence interval is 99 % and the maximum error of estimate is 3.  N=
What are the expected value-standard deviation : A population of 1,000 student spends an average of $10.50 aday on dinner. The standard deviation of the expenditure is $3 . Asimple random sample of 64 students is taken.
Confidence interval to estimate the true cost of the vcr : A survey of retail stores revealed that a particular brand andmodel of a VCR retails for $375 with a standard deviation of$20. Develop a 95% confidence interval to estimate the true cost ofthe VCR.
Will reduce its inventory costs-null hypothesis : A private consulting firm determines the method that will reduce its inventory costs. The suggestions of the consulting firmare based on the assumption that mean time between the date oforder and date the items are received is 150 days.
Multiple choice exam : A student is taking a multiple choice exam in which eachquestion has four choices. Assume that she has no knowledge of thecorrect answers to any of the questions. There are five multiple choicequestions on the exam. What is the probability that she w..
Checked periodically by a quality control inspector : A production process is checked periodically by a quality control inspector. The inspector selects simple random samples of30 finished products and computes the sample mean product weights Xbar.

Reviews

Write a Review

Other Subject Questions & Answers

  What are the aspects of marketing management

What are the aspects of marketing management? How has the marketing management process changed over the last several decades?

  Peer relationships in middle childhood and adolescence

Describe changes in peer relationships in middle childhood and adolescence.

  Reliability and validity within psychological testing

Please compare and contrast reliability and validity within psychological testing. Explain the significance of each, and provide examples of both concepts.

  Can schizophrenia be prevented

Read the box at the end of chapter 13 "Unresolved Issues: Can Schizophrenia be Prevented?" After reading the text and looking at the evidence for biological, psychological and social risk factors and remembering the diathesis-stress model of patho..

  Persuasive techniques used in advertising

Find one example of a commercial or advertisement of your product or service that strikes you as particularly creative and appealing.

  Social cognition to your future practice

A explanation of two ways you might use social cognition to promote social change. Explain how you might incorporate social cognition into your future practice and research.

  Is this affirmative action plan valid

In order to increase the number of male supervisory librarians, the library decides to implement an affirmative action plan that would consider gender as one component of the decision when promoting librarians. Is this affirmative action plan valid?

  Climate change and global warming

In trying to balance the pros and cons on the respective sides of this issue, provide one scientific statement and/or argument for your position and then provide one countering statement or argument from the other side.

  Search for altered states of consciousness

Why do you think people in almost every culture use psychoactive drugs and search for altered states of consciousness?

  Steps to authenticate local police department-s findings

Your computer firm has been hired to authenticate local police department's findings on current case. Tensions over the case is running high in city.

  Discuss the history of social security

Discuss the history of social security, its effectiveness at inception compared to the present, and the future of Social Security. In addition, apply your knowledge and opinion to this question: Would you try to ensure the future of Social Security? ..

  Society controls undesired behaviors

Give three examples of how society controls undesired behaviors, by means other than laws, and identify what are the strengths and weaknesses for each example.

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