Find the sample size necessary to estimate the mean iq

Assignment Help Basic Statistics
Reference no: EM13621612

An IQ test is designed so that the mean is 100 and the standard deviation is 10 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the sample mean is within 4 IQ points of the true mean. Assume that o- = 10 and determine the required sample size using technology. The required sample size is?

Reference no: EM13621612

Questions Cloud

The model pump has am impeller diameter of 10 cm and a : a 15 scale model of centrifugal water pump was tested. the model pump has am impeller diameter of 10 cm and a rotation
What is the wacc for a companys with after tax cost of : what is the wacc for a companys with after tax cost of equity preffered debt equal to 16 9 5 if equity makes up 30
If the copper sphere is initially at 1000k perform an : a 1-in diameter pure copper sphere is suspended in a room where the walls and air are all at 300k. the natural
At most how many bright fringes can be formed on each side : at most how many bright fringes can be formed on each side of the central bright fringe not counting the central bright
Find the sample size necessary to estimate the mean iq : an iq test is designed so that the mean is 100 and the standard deviation is 10 for the population of normal adults.
Sharpe products has 1 million outstanding shares and 7 : sharpe products has 1 million outstanding shares and 7 directors to be elected. cumulonimbus holdings owns 200000
Consider a regression situation in which y hardness of : consider a regression situation in which y hardness of molded plastic and x amount of time elapsed since termination
When subjected to the axial load p the diameter of the rod : a solid circular rod with a diameter of d 18mm. the bar is ade of an aluminum alloy that has an elastic modulus of e
A plug in an electrical device consists of two metal : a plug in an electrical device consists of two metal conductors that are seperated by a distance of 75cm. an electric

Reviews

Write a Review

Basic Statistics Questions & Answers

  Formulate a linear programming model to maximize

The Charm City Fan Company manufactures two products: large fans and medium fans. Each large fan requires 3 hours of wiring and 2 hours of drilling. Each medium fan requires 2 hours of wiring and 1 hour of drilling. There are 480 hours of wiri..

  Develop business research proposal

Identify a business research topic and define the research questions for the identified problem or opportunity

  The human resources department at a major high tech company

the human resources department at a major high tech company recently conducted an employee satisfaction survey of 100

  Calculate mean absolute deviation

Considering the following data using weighted moving average (4 quarters; 0.4, 0.3, 0.2, and 0.1; where 0.5 is the weight for the most recent quarter)Calculate Mean Absolute Deviation.

  State the values of the coefficient of correlation

State the values of the coefficient of correlation and coefficient of determination correct to three decimal places

  Transportation problem using the stepping stone method

Transportation problem using the stepping stone method

  Expected profit contribution

A pharmaceutical company has determined that if a new cholesterol-reducing drug is manufactured (introduced to the market) the following probability distribution will describe this drug's contribution to the company profits during the next six mon..

  Advantages of accurate interpretation of statistics

The types kinds of statistical information collected in your professional setting. Provide examples to illustrate the information/data.

  The 24 children in the passive group had these counts of

a study of computer-assisted learning examined the learning of blissymbols by children. blissymbols are pictographs

  Sample size for estimating the population mean

How large a sample should be taken if the desired margin of error E is:

  Problem will cause and how should difficulty be resolved

The smallest quantity in a cell is minus 35, but two different cells with minus signs have 35 units in them. What problem will this cause and how should this difficulty be resolved?

  Null-alternative hypotheses

State the null and alternative hypotheses you would use to test whether the year-end bonuses paid by Jones & Ryan were different from the population mean.

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