question 1(3 points)

If the = 4.56, the median= 5.75, and the mode = 7.00 it is likely that our data is negatively skewed.

Question 1 options:

	True
	False

Question 2(3 points)

A(n)____________ is to a sample as a(n)___________ is to a population.

Question 2 options:

	parameter; statistic
	inferential; statistic
	statistic; parameter
	statistic; inferential

Question 3(3 points)

Tracy is an industrial/organizational psychologist. She is interested in determining if the emotional support that a person receives at home has an impact on their job satisfaction. She gives 100 participants a survey in order to measure both factors. In this study, job satisfaction is a(n).

Question 3 options:

	Independent variable
	Predictor variable
	Nominal variable
	Criterion variable

Question 4(3 points)

In a Pearson correlation, r tells you

Question 4 options:

	Slope of the line
	The cause of variable Y
	The Y axis intercept
	How closely related are variable X and variable Y

Question 5(3 points)

The lowest degree of correlation shown below is

Question 5 options:

	.46
	-.89
	-17
	.03

Question 6(3 points)

A personality psychologist thinks that managers have a different level of extroversion on a Big-Five personality inventory than the rest of the population. She should use a

Question 6 options:

a)	None of the above

b)	either A or B is correct

c)	One-tailed test

d)	two-tailed test

Question 7(3 points)

If H_Ais true, as the power of the experiment increases, the probability of rejecting H₀increases.

Question 7 options:

	True
	False

Question 8(3 points)

If a curve is_________ , most scores fall on the upper endof the distribution. If a curve is______ , most scores fall on the lower endof the distribution.

Question 8 options:

	Positively skewed, negatively skewed
	Negatively skewed, positively skewed
	Symmetrical, normal
	Normal, positively skewed

Question 9(3 points)

What type of relationship does the following regression line represent?

Question 9 options:

	a negative relationship
	no relationship
	a curvilinear relationship
	a positive relationship

Question 10(3 points)

Given the data (1, 7, 5, 9, 10), evaluate{"version":"1.1","math":"$\sum _{}^{}{X}^{}$"}

Question 10 options:

	256
	1024
	57
	32

Question 11(3 points)

A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 550 with a standard deviation of 150. The scores are normally distributed. The proportion of scores that lieBELOW630 is .

Question 11 options:

	.2981
	.7981
	.7019
	.2019

Question 12(3 points)

If H₀is true and we reject it, we have made a Type II error

Question 12 options:

	True
	False

Question 13(3 points)

For any given distribution of scores, what percentage of people score between 0 and -1 standard deviations from the mean?

Question 13 options:

	2%
	50%
	13.5%
	34%