As their sample size increases whats the expected shape of

Assignment Help Basic Statistics
Reference no: EM13624995

1. For a sample of 36 houses, what would you expect the distribution of the sale prices to be? A real-estate agent has been assigned 10 houses at random to sell his month. She wants to know whether the mean price of those houses is typical. What, if anything, does she need to assume about the distribution of prices to be able to use the Central Limit Theorem? Are those assumptions reasonable?

2. In 2008 and 2009, Systemax bought two failing electronics stores, Circuit City and CompUSA. They have kept both the names active and customers can purchase products from either webiste. If they take a random sample of a mixture of recent purchases from the two websites, the distribution of the amounts purchased will be bimodal.

a) As their sample size increases, what's the expected shape of the distribution of amounts purchased in the sample?

b) As the sample size increases, what's the expected shape of the sampling model for the mean amount purchased for the sample?

Reference no: EM13624995

Questions Cloud

Personnel tests are designed to test a job applicants : personnel tests are designed to test a job applicants cognitive andor physical abilities. a particular dexterity test
What is the probability that one random selected will last : life time of flowers in a bouquet is normally distributed with a mean of 6 days and a standard deviation of 1.7 days.a.
What is the xalpha2 critical value that wouls be used to : the irs randomly selected 2950 tax returns for audit and discovered that 1900 of them had serious errors. the sample is
Apopulation variance 34 what is the standard deviation : a population variance 34a. what is the standard deviation ?b. what if n 14 what would be the standard deviation of the
As their sample size increases whats the expected shape of : 1. for a sample of 36 houses what would you expect the distribution of the sale prices to be? a real-estate agent has
Suppose a highlighter manufacturer wanted to find out : suppose a highlighter manufacturer wanted to find out whether a highlighter lasted longer than the claim of 14
A researcher was interested in determining the effect of : a researcher was interested in determining the effect of an experimental drug on the lifespan of laboratory rats.
Why does analysis of variance should be conducted only when : why does analysis of variance should be conducted only when population variances can be assumed to be equal? why not
A sample of 250 observations is selected from a normal : a sample of 250 observations is selected from a normal population for which the population standard deviation is known

Reviews

Write a Review

Basic Statistics Questions & Answers

  Information about correlation analysis

What information is provided by the numeral value of the Pearson correlation? What is the major distinction between the Pearson and Spear man correlations?

  Suppose we have a set of 100 x y points if we multiply all

suppose we have a set of 100 x y points. if we multiply all of the xs by 10 thena. the mean and standard deviation of

  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.

  Chi square test of independence and test for goodness

In a sample of 64 patients, suppose that 47 showed allergic reduced reaction and 17 show increased reaction. Are these results sufficient to conclude a significant effect?

  1on november 26 1995 the minneapolis tribune ran an article

1.on november 26 1995 the minneapolis tribune ran an article on gender differences in shopping behavior. when 400 women

  In general when dealing with inferences for two population

assume we want to use a .05 significance level to test the claim that p1ltp2. it we want to test that claim by using a

  Should manager increase the staff

These data are presented below. Should the manager be given an increase in staff? Why or why not? Please show your work.

  Construct a 95 confidence interval estimate of the mean

the personnel director of a large corporation wishes to study absenteeism among clerical workers at the corporations

  The human resources department believes that women tend to

data were collected on annual personal time in hours taken by a random sample of 16 women and 7 men employed by a

  Determining hypothesis testing and effect size

Describe what is measured by the estimated standard error in the bottom of the independent-measures t statistics.

  Finding and interpreting coefficients of correlation

Find out and interpret coefficients of correlation and determination for U. S. prices versus Canadian prices.

  Find the probability that almost two stampins are defective

The defective and non defective stampins proceed from the machine on a random manner. If 4 stampings are randomly collected, find The probability that almost 2 are defective.

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