Clarification of standard deviation

Assignment Help Basic Statistics
Reference no: EM1391215

According to the data from the College Entrance Examination Board, scores on the SAT-I test have a mean of 1017, and Q1 is 880. The scores have a distribution that is approximately normal. Find the standard deviation, then use that result to find P99.

Reference no: EM1391215

Questions Cloud

With what speed did the bullet strike the block : A 10-kg bullet is fired horizontally into a 300-g wooden block initially at res on a horizontal surface and become embedded in it. The coefficient of friction between block and surface is (0.50).
Recognize two main theories in education field : Recognize two main theories in education field. Recognize the theorist(s) and sources of theories (key articles or books) in discipline.
Organism in developmental biology research : An eight cell frog embryo can be separated into its individual cells and those cells placed in incubators with all the necessities for development.
Cigarette tax : A consumer would prefer to have his or her income doubled rather than prices of all goods halved and decrease in price simply represents a transfer from suppliers to consumers.
Clarification of standard deviation : According to the data from the College Entrance Examination Board, scores on the SAT-I test have a mean of 1017, and Q1 is 880.
Compute the acceleration of the crate : It stops 90 cm from where you free it. The spring steady is 370 N/m. What is the coefficient of kinetic friction between the block and the table.
Explain why previous laws have failed : explain why previous laws have failed. If you believe which the reverse is true, please explain why CEOs and CFOs are paying so much attention to this law.
Average household salary in a geographic area : Your firm has determined that if the average household salary in a geographic area is greater than $53000, then their product will be successful.
How physician may characterize behaviour : Totally withdrawn from everyone, and has missed two very significant deadlines. Explain how Debbie, people around her, and her physician may characterize this behaviour, and what is causing it.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Testing the new population having errors

This sample group has errors with a standard deviation of 54.7ft. At the 5% level of significance, test that the new population has errors with a standard deviation equal to 43.7ft.

  Florida state university administers a mathematics

Florida State University administers a mathematics placement test to students where they 1st enter the university.

  Standard error of the estimate and interpret

Use drinking as an excuse for outrageous behavior. including public nudity and dancing on tables. Find the standard error of this estimate. and interpret.

  Mean weight of the sample horses

Suppose the horses in a large stable have a mean weight of 1464 lbs, and a standard deviation of 111. What is the probability that the mean weight of the sample horses would differ from the population mean by less than 11 lbs if 34 horses are samp..

  Confidence interval for the mean daily caloric intake

Find a 95% confidence interval for the mean daily caloric intake. Interpret this interval.

  Solving problem using decision tree analysis

Using decision tree analysis, decide whether Jay must proceed with his law suit against manufacturer.

  Evaluate the t statistic for testing contrast

The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast

  Solve linear programming problem using solver

A farmer in Iowa owns 45 acres of land. He is going to plant each acre with wheat or corn. Each acre planted with wheat yields $200 profit, requires 3 workers, and requires 2 tons of fertilizer; each with corn yields $300 profit, requires 2 worker..

  Normal distribution with a mean and variance

If the life of wild pheasants follows a normal distribution with a mean of 9 months and a variance of 9, what percent of the population will be less than 11 months of age?

  Determining the probability the mean of sample

Suppose the manufacturers claim is right, determine the probability the mean of sample is 47,840 miles or less?

  Creating joint probability table

Create probability tree showing all marginal, conditional, and joint probabilities. Create a joint probability table.

  Determining events in distribution mutually exclusive

Are all the events in this distribution mutually exclusive? Describe in detail.

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