Worldwide it is understood that iq scores follow a normal

Assignment Help Basic Statistics
Reference no: EM13642688

Worldwide it is understood that IQ scores follow a normal distribution. It is assumed that the middle 95% of the population has an IQ between 70 and 130 with a mean of 100. Use this information to determine the following:

A. What is the standard deviation of the population?

B. What IQ score corresponds to the 90th percentile?

C. What percentile corresponds to a score of 75

Reference no: EM13642688

Questions Cloud

Assume that the significance level is a005 use the given : assume that the significance level is a0.05. use the given information to find the p-value and the critical values.with
When circuit boards used in the manufacture of compact disc : when circuit boards used in the manufacture of compact disc players are tested the long-run percentage of defectives is
What is the chance the student majors in engineering given : in a university a about 52 of all students are male and 48 are female. we know 20 of male students and 5 of female
Josh hamilton of the texas rangers had the highest batting : josh hamilton of the texas rangers had the highest batting average in the 2010 major league baseball season. his
Worldwide it is understood that iq scores follow a normal : worldwide it is understood that iq scores follow a normal distribution. it is assumed that the middle 95 of the
Suppose x the number of flaws in a roll of polyethylene : suppose x the number of flaws in a roll of polyethylene insulated cable follows a poisson process where ? is 1.1 flaws
The environmental engineer in problem 6 is concerned with : the environmental engineer in problem 6 is concerned with catching fish. again assume the capture of fish is a binomial
For each rule what is the probability of accepting a : the following two acceptance rules are being considered for determining whether to take delivery of a large shipment of
One of the issues that environmental engineers are : one of the issues that environmental engineers are concerned with involves lake pollution. suppose for a given lake a

Reviews

Write a Review

Basic Statistics Questions & Answers

  Find the probability that at most 15 people say dna test

In a survey of adults, 68% thought that DNA test for identifying an individual were very reliable. You randomly select 24 adults and ask each if he or she thinks DNA test for identifying an individual are very reliable.

  Suppose you fit the first order multiple regression model y

suppose you fit the first order multiple regression model y b0 b1x1 b2x2 eto n 25 data points and obtain the

  If the number of people that voted for the candidate in the

suppose that in elections a candidate says that hell get 60 of the votes in the election. the total population is 300

  Difference in the standard deviation

What is the difference between the mean of the two groups? What is the difference in the standard deviation?

  Estimate of the percentage rather than peter''s estimate

However, Peter's assistant Janice believes that the Liberal Party will receive approximately 75% of the vote in that riding. If survey costs are $10 per person, how much money can be saved by using Janice's estimate of the percentage rather than P..

  Film change students attitudes by five steps of hypothesis

Using the five steps of hypothesis testing and the 5% significance level (alpha), does showing the film change students' attitudes towards the chronically mentally ill?

  What does it mean to say that your score on test one in

what does it mean to say that your score on test one in statistics was in the 90th percentile?

  We flip a fair coin 10 times what is the conditional

we flip a fair coin 10 times. what is the conditional probability of getting 10 heads given that the number of heads is

  Probability that both gloves selected will be right-handed

If two gloves are randomly selected from the box, without replacement (the first glove is not returned to the box after it is selected), what is the probability that both gloves selected will be right-handed?

  Probability from classical approach

You are dealt 2 cards successively without replacement from a shuffled deck of 52 cards. Find the probability that the first card is a king and the second card is a queen.

  The known population standard deviation for attendance on

a 7000-seat theater is interested in determining whether there is a difference in attendance between shows on tuesday

  A bright idea a company produces lightbulbs whose life

a bright idea. a company produces lightbulbs whose life follows the n1500 300 distribution i.e. the lifetimes of

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