10 out of 10 points
The area under the normal curve represents the proportion of scores that are contained in the
area.
Selected Answer:
Correct Answer:
True
True
Question 2
10 out of 10 points
The normal curve is a symmetric, bell-shaped curve.
Selecte
In inferential statistics the object is usually to
generalize from a _ to a _. sample;
population
Let's assume you are conducting an experiment to
determine the effect of a new drug on the incidence
of epileptic seizures. You select 20 epileptics from
the
Multiple Choice Quiz 2
Given the data X1 = 1, X2 = 4, X3 = 5, X4 = 8, X5 = 10,
evaluate. 47
Given the following set of numbers, X1 = 2, X2 = 4, X3 = 6, X4 =
10, what is the value of S X2? 156
Given the following set of numbers, X1 = 2, X2 = 4, X3 = 6, X4
Correlation Formula:
n
r
z
i 1
z
1i 2 i
n 1
Multiple choice or True/False questions:
1. Correlation relates the relative position of a score in one distribution to
a. the relative position of a score in another distribution
b. the mean of the z-scores fro
Question 1
5 out of 5 points
In a perfect relationship, _.
Selected Answer:
a.
all the points fall on the line
Correct Answer:
a.
all the points fall on the line
Question 2
5 out of 5 points
In order to properly use rho, the variables must be of at leas
5 out of 5 points
What is the value of the Spearman rank order correlation coefficient (rho) for the following
pairs of ranks?
Selected Answer:
a.
0.50
Correct Answer:
a.
0.50
Question 2
5 out of 5 points
A correlation between college entrance exam grad