To use the t-statistic to test for a difference between the

Assignment Help Basic Statistics

Reference no: EM13641828

To use the t-statistic to test for a difference between the means of two populations, what assumptions must be made about the two populations? About the two samples?

What assumption(s) must be made about the two populations? Select all that apply.

a) Both sampled populations must have approximately equal population variances.

b) Both populations must be selected independently of each other.

c) There must be more than 30 samples selected from each population.

d) Both sampled populations must be approximately normally distributed.

What assumption(s) must be made about the two samples? Select all that apply.

a) The samples must be normally distributed.

b) There must be more than 30 samples selected from each population.

c) The samples must be independent of each other.

Reference no: EM13641828

Questions Cloud

Assume that 64 of twins are of the same gender given that a : assume that 64 of twins are of the same gender. given that a newborn set of twins is of the same gender what is the

Predict the wolf population in b using the regression line : data obtained from a random sample of recent years of caribou and wolf population.caribou x 30 34 27 25 17 23 20wolf y

The number of telephone calls that arrive at a phone : the number of telephone calls that arrive at a phone exchange is often modeled as a poisson random variable. assume

A company has 7 senior and 5 junior officers an ad hoc : a company has 7 senior and 5 junior officers. an ad hoc legislative committee is to be formed. in how many ways can a

To use the t-statistic to test for a difference between the : to use the t-statistic to test for a difference between the means of two populations what assumptions must be made

Suppose that each ticket costs 5 and the total cost of : concert attandance depends on the weather. there are three possible types of weather on the day of the concert terrible

A survey of 77 freshman business students at a large : a survey of 77 freshman business students at a large university produced the following results 25 of the students read

At a day care there are 5 apples 8 pears and 12 oranges : at a day care there are 5 apples 8 pears and 12 oranges available for snack time. marsha amp adrienne get to the front

Suppose that a fair coin is tossed repeatedly and let n be : suppose that a fair coin is tossed repeatedly and let n be the number of tosses until the rst heads is obtained.a find

User Account

All Pages