Given the data below, what is the 90% confidence interval for the variance?
22, 23, 19, 17, 29, 25
C
An experiment with two factors, in which all levels of one variable are run at each level of the second
variable, is called a
C
The primary advantage of the Latin square design, compared to the factorial design, is that
A
The "least squares method" is used in
D
The value for t, when making a two-tailed paired t test, with samples of 13 and alpha =0.05, is
B
In nonparametric statistics:
. No assumptions are made concerning the distribution from which the samples are taken.
. The parameters of the distribution do not relate to the parameters of the sample.
. The sample and the distribution must have no parameters in common.
A
The difference between setting alpha equal to 0.05 and alpha equal to 0.01 in hypothesis testing is
A
One-way analysis of variance is MOST similar in its objectives to
C
A two-way analysis of variance has r levels for one variable and c levels for the second variable with 2
observations per cell. The degree of freedom for interaction is
B
Which of the following is a valid null hypothesis?
D