Which of the following statements is true of theFdistribution:

Question 37 options:

the values range from minus infinity to plus infinity

the distribution has a mean of 0 and a standard deviation of 1

the distribution is symmetrical

the area under the curve adds up to 1.0

what is D₀?

Question 39 options:

The hypothesized difference between two populations means in the context of two matched samples

The hypothesized difference between two populations means in the context of two independent samples

The average difference score in the population

The average difference score in the sample

When a sum of squares is divided by its associated degrees of freedom, you get:

A x² statistic

a mean square

the error or residual sum of squares

an f statistic

The level of significance of a statistical test is the:

Question 43 options:

The minimum allowable probability of making a Type I error

Same as thep-value

The maximum allowable probability of making a Type I error

Same as the confidence coefficient

A simple random sample of size 1000 gives a sample proportionp=.30.What is the margin of error here at the 99% confidence level?

(the underline of P is supposed to be above it not under)

Question 45 options:

.0374

.0748

.3374

2.58

Based on the results of a survey, a pollster states that for a given question there is a 19 out of 20 chance that the interval between 9.26 and 15.26 contains the population mean.What is the margin of error here?

Question 47 options:

3

.05

1.96

6

what is a(alpha)

The probability of rejecting the null hypothesis when it shouldn't be rejected

The probability of rejecting the null hypothesis when it should be rejected

The probability of not rejecting the null hypothesis when it shouldn't be rejected

The probability of not rejecting the null hypothesis when it should be rejected