Question 28
Probability is defined as:
2.5 out of 2.5 points
2.5 out of 2.5 points
2.5 out of 2.5 points
2.5 out of 2.5 points

Question 29
Six students from a statistics class reported the number of hours of television they
watched per week. Here are their data: 8, 10, 5, 14, 3, 6. What is the mean number of
hours of television watched per week for this sample of six students?
2.5 out of 2.5 points

Question 30
When his boss asked him the likelihood that he would be able to produce the annual
report by next Friday, Joshua told him that he was 90% likely to complete it by the
deadline. Joshua’s estimate is:
2.5 out of 2.5 points

Question 31
Dr. Baker designed an experimental study to assess potential di
ff
erences between
science students and art students on a math reasoning abilities test. Dr. Baker found a
mean di
ff
erence in math performance between science and art students. On average, art
students performed higher on the math reasoning test compared to the science
students. Dr. Baker’s findings support which hypothesis?
2.5 out of 2.5 points

Question 32
If a researcher rejects the null hypothesis when the null hypothesis is in fact true, she
has:
2.5 out of 2.5 points

Question 33
This table represents the fictional scores of a set of participants who rated their
optimism levels on a scale from 1 to 7, with 1 indicating
very unoptimistic
and 7
indicating
very optimistic
Participants
Rating
7
1
6
7
5
5
4
7
3
7
2
6
1
5
The mean in this data set is:
2.5 out of 2.5 points
.

Question 34
2.5 out of 2.5 points

This table represents the fictional scores of a set of participants who rated their
optimism levels on a scale from 1 to 7, with 1 indicating
very unoptimistic
and 7
indicating
very optimistic
Participant
Rating
7
1
6
7
5
5
4
7
3
7
2
6
1
5
The mode in this data set is:
.

Question 35
A bimodal distribution has ________ mode(s).
2.5 out of 2.5 points

Question 36
If a student sees 5.0–9.9 in a table in an article in a psychology journal, the student is
seeing ______
2.5 out of 2.5 points

Question 37
If a psychologist summarizes data for a variable in a frequency table, but finds that
there are so many values for the variable that the table is too cumbersome to be useful,
the next step would be to make a _____
0 out of 2.5 points

Question 38
Which of the following student characteristics is an example of a nominal variable?
2.5 out of 2.5 points

Question 39
When a distribution is skewed to the left, it is likely that
2.5 out of 2.5 points

Question 40
A frequency table lists
2.5 out of 2.5 points

Thursday, September 29, 2016 11:39:50 AM EDT
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