PSYC 210 Midterm Exam Questions with CORRECT Answers (Grade A+)
Question 1:
alternate hypothesis
Answer:
A statement that is accepted if the sample data provide sufficient evidence that the null hypothesis is
false.
Question 2:
The alternative hypothesis for an independent- measures t test states
Answer:
µ1 - µ2 not equal to 0
Question 3:
A. µ1 + µ2 = 0
B. M1 - M2 not equal to 0
C. µ1 - µ2 not equal to 0
D. M1 - M2 = 0 Assessing how happy UNC students are on a 7- point scale (1 not very happy to 7
extremely happy) would be best achieved using what type of scale?
Answer:
Interval
Question 4:
A. Nominal
B. Ordinal
C. Interval
D. Ratio An assumption of the independent samples t- test is that the populations from which the
samples are drawn have equal variability. This assumption is known as:
Answer:
Homogeneity of variance
,Question 5:
A. Independence
B. Outcomes are normally distributed
C. Homogeneity of variance
D. Heterogeneity of variance as your degrees of freedom get larger, your critical point....
Answer:
gets smaller
Question 6:
Central Limit Theorem (CLT)
Answer:
Says that when n is large, the sampling distribution of the sample mean is approximately Normal
Question 7:
The Central Limit Theorem tells us that the shape of a sampling distribution of means approaches a
normal distribution as:
Answer:
The size of the samples get larger
Question 8:
A. the population distribution approaches a normal distribution.
B. the standard deviation of the population approaches the standard error of the mean.
C. the mean of the population distribution gets larger.
D. the size of the samples gets larger. continuous variable
Answer:
infinite number of values
Question 9:
cumulative frequency
Answer:
, # of responses up to that point (sum)
Question 10:
cumulative relative frequency
Answer:
the summation of the previous relative frequencies
Question 11:
Data
Answer:
observations and measurements recorded during an experiment
Question 12:
Descriptive Statistics
Answer:
Describes characteristics of a sample, No inference
Question 13:
discrete/categorical variable
Answer:
finite number of values
Question 14:
For a relative frequency histogram, each point on the graph represents
Answer:
the percent of scores at a particular point or interval
Question 15:
A. the percent of scores at a particular point or interval
B. the percent of scores above a particular point or interval
C. the percent of scores at or below a particular point or interval divided by the total number of scores
Question 1:
alternate hypothesis
Answer:
A statement that is accepted if the sample data provide sufficient evidence that the null hypothesis is
false.
Question 2:
The alternative hypothesis for an independent- measures t test states
Answer:
µ1 - µ2 not equal to 0
Question 3:
A. µ1 + µ2 = 0
B. M1 - M2 not equal to 0
C. µ1 - µ2 not equal to 0
D. M1 - M2 = 0 Assessing how happy UNC students are on a 7- point scale (1 not very happy to 7
extremely happy) would be best achieved using what type of scale?
Answer:
Interval
Question 4:
A. Nominal
B. Ordinal
C. Interval
D. Ratio An assumption of the independent samples t- test is that the populations from which the
samples are drawn have equal variability. This assumption is known as:
Answer:
Homogeneity of variance
,Question 5:
A. Independence
B. Outcomes are normally distributed
C. Homogeneity of variance
D. Heterogeneity of variance as your degrees of freedom get larger, your critical point....
Answer:
gets smaller
Question 6:
Central Limit Theorem (CLT)
Answer:
Says that when n is large, the sampling distribution of the sample mean is approximately Normal
Question 7:
The Central Limit Theorem tells us that the shape of a sampling distribution of means approaches a
normal distribution as:
Answer:
The size of the samples get larger
Question 8:
A. the population distribution approaches a normal distribution.
B. the standard deviation of the population approaches the standard error of the mean.
C. the mean of the population distribution gets larger.
D. the size of the samples gets larger. continuous variable
Answer:
infinite number of values
Question 9:
cumulative frequency
Answer:
, # of responses up to that point (sum)
Question 10:
cumulative relative frequency
Answer:
the summation of the previous relative frequencies
Question 11:
Data
Answer:
observations and measurements recorded during an experiment
Question 12:
Descriptive Statistics
Answer:
Describes characteristics of a sample, No inference
Question 13:
discrete/categorical variable
Answer:
finite number of values
Question 14:
For a relative frequency histogram, each point on the graph represents
Answer:
the percent of scores at a particular point or interval
Question 15:
A. the percent of scores at a particular point or interval
B. the percent of scores above a particular point or interval
C. the percent of scores at or below a particular point or interval divided by the total number of scores
