Why does analysis of variance should be conducted only when

Assignment Help Basic Statistics
Reference no: EM13624992

Why does analysis of variance should be conducted only when population variances can be assumed to be equal? why not when they are approximately equal? Is it because there is no way of knowing the population variances?

Reference no: EM13624992

Questions Cloud

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
The power generated by a solar electric generator is : the power generated by a solar electric generator is normally distributed with mean 15.6 kilowatts and standard
The time interval between two successive customers : the time interval between two successive customers entering a store in a mall is exponentially distributed with a mean
When running a non-parametric test on spss with a small : when running a non-parametric test on spss with a small sample size which test statistic will not provide the most

Reviews

Write a Review

Basic Statistics Questions & Answers

  Is margins of error same-larger-smaller of girls than boys

Assume that results of survey were used to create seperate 99% confidence intervals for boys and girls. would the margins of error be same as, larger , or smaller than that for question one?

  Evidence to reject the findings of robert half international

She randomly samples 67 CFOs and finds that 40 of them get their money news from newspapers. Does the test show enough evidence to reject the findings of Robert Half International? Use a = .05.

  Changes in each of the variables

Over the past 30 years in the United States, there has been a strong negative correlation between the number of infant deaths at birth and the number of people over age 65. What lurking variables might be causing the changes in each of the variabl..

  Average amount of error expected

Correct answerThe "average" amount of error expected in predictions The number of cases that have a non-zero residual The strength of the correlation between X and Y

  The sampling distribution for the sample mean is normal

suppose that the lengths are normally distributed. a quality specialist collects a random sample of 16 rods and finds

  Infinite population with a mean

iven an infinite population with a mean of 75 and a standard deviation of 12, the probability that the mean of a sample of 36 observations taken at random from this population exceeds 78 is?

  There is disagreement among researchers

Here is a fictitious example: Say your review of the literature shows that we know that smiling causes happiness. It also shows that there is disagreement among researchers and theorists in these areas.

  A negative relationship between an explanatory variable x

a negative relationship between an explanatory variable x and a response variable y means that as x increases y

  Model for predicting voter turnout

Reject H0 at β β = .01; there is evidence of a difference between the mean voter turnouts for urban, suburban, and rural precincts.

  Determining the probability of mean height

Determine the probability that mean height of random sample of 100 women is greater than 66 inches?

  A lock on a bank vault consists of three dials each with 30

a lock on a bank vault consists of three dials each with 30 positions. in order for the vault to open each of the three

  Maximize the expected total portfolio return

A. Formulate a linear program that can be used to determine the percentage allocation to the bond  fund and stock fund. The objective of the problem is to maximize the expected total portfolio  return.

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