User Account

All Pages

What is the mean and the standard deviation of x

Assignment Help Business Management
Reference no: EM132409493

A large population of 5,000 students take a practice test to prepare for a standardized test. The population mean is 150 questions correct, and the standard deviation is 90.

(a) Let X = The number of questions correct obtained by a student. What is the mean and the standard deviation of X?

(b) Let X = The average number of questions correct in a sample of 120 students. What is the mean and the standard deviation of X ? By the Central Limit Theorem, what is the distribution of X ?

(c) What sample size should a researcher take to get a distribution of means of the samples with a standard deviation of 5?

Reference no: EM132409493

Questions Cloud

What is the target operating income per unit : A company's invested capital is $13,000,000 and management has determined that the target rate of return on investment is 10%. Last year, the company produced
What is the predetermined overhead rate : Moody Corporation uses a job-order costing system with a plantwide predetermined overhead rate based on machine-hours. At the beginning of the year.
Confidence interval based on sample? results : What is the margin of error for a? 95% confidence interval based on these sample? results? (Round to four decimal places.)
At what amount should the land be carried on bravos books : At the time the land was purchased, Bravo intended to hold it for 20 years. At what amount should the land be carried on Bravo's books today?
What is the mean and the standard deviation of x : Let X = The number of questions correct obtained by a student. What is the mean and the standard deviation of X?
What attribute is generally associated with trade payables : In what paragraphs can a researcher find guidance on measurement attributes? What attribute is generally associated with trade payables? Explain.
What is the overhead cost : Sigma Corporation applies overhead cost to jobs on the basis of direct labor cost. Job V, which was started and completed during the current period.
How much was net income for the year : Issuances of capital stock during the year amounted to $18,000. Dividends during the year amounted to $12,000. How much was net income for the year?
How much was bravo companys 20x6 net income : The only other transaction during 20X6 was the purchase of $5,000 of equipment for cash near the end of the year. How much was Bravo Company's 20X6 net income?

Reviews

Write a Review

Business Management Questions & Answers

  Conduct research on the relevant legislation

conduct research on the relevant legislation that applies to your jurisdiction. Report (3 pages) on legislation from federal, state and local government that affects business operation.

  Involvement of upper management in it

The assignments that have hands on involvement from upper management can be considered same to heavyweight project team in the producing world.

  Determine which of the four quadrants of the bcg matrix

Research a company of your choice and determine which of the four quadrants of the BCG Matrix you feel it fits into. Justify your response using information about the company. Your paper should be a minimum of 500 words.

  Provide an example of composition

Provide an example of composition and please explain the example in full details?

  Demonstrate flexibility and adaptability

As a team member, what can an individual do to demonstrate flexibility and adaptability when dealing with others

  Single or hybrid revenue sources

Suggest 3 to 5 different revenue streams ideas that will work with e-commerce business model, you can use single or hybrid revenue sources?

  She wants to withdraw an amount

If she wants to withdraw an amount x at the end of each year for the first 6 years and then x+500 each year for years 7-12, what is the value of x?

  Economic logic of actions

To maintain price floors on milk, the U.S. government has at times bought out and destroyed dairy herds from dairy farmers.

  Make a persuasive case that a worm

Make a persuasive case that a virus would cause more harm to a networked computer or make a persuasive case that a worm

  Application for an interior surface coating facility

As a continuation of our course project due in Unit VIII, A Permit By Rule (PBR) Application for an Interior Surface Coating Facility, complete the next section, "Heater and Oven Combustion Emissions," of your proposal by following the instruction..

  Question regarding the kinds of challenges

What kinds of challenges would be involved in recruiting and selecting people to translate documents from Spanish, polish and French into English?

  Business ethics-corporate social responsibility

Based on your experience, education, and knowledge, how would you best incorporate the following concepts into your view of how to get the best performance.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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