Question 1

This question relates to the output below:   The variable is not bimodal because

Accepted Answer

A) It is actually bimedial 
B) The average of the median and the mode is more than the mean 
C) 5 is the sole modal value because 7 people scored 5 and no other score has as many as that 
D) Even though there are two modes the distribution is not itself bimodal 
E) The distribution is too skewed to be bimodal 
A) It is actually bimedial 
B) The average of the median and the mode is more than the mean 
C) 5 is the sole modal value because 7 people scored 5 and no other score has as many as that 
D) Even though there are two modes the distribution is not itself bimodal 
E) The distribution is too skewed to be bimodal

Question 2

This question relates to the output below:   Which of the following statements is not true?

Accepted Answer

A) The mode is 7 because 8 people (N)scored "7" and we need to subtract 1 from 8 to control for bias. 
B) Nearly half the participants scored less than the median. 
C) There were no missing data in the 25 scores. 
D) The variable is positively skewed. 
E) Both (a)and (d). 
A) The mode is 7 because 8 people (N)scored "7" and we need to subtract 1 from 8 to control for bias. 
B) Nearly half the participants scored less than the median. 
C) There were no missing data in the 25 scores. 
D) The variable is positively skewed. 
E) Both (a)and (d).

Question 3

This question relates to the output below:   How can see that this variable is negatively skewed?

Accepted Answer

A) The median is the average of the mean and mode. 
B) The median is higher than the mean. 
C) The median is the arithmetic mean of the mode. 
D) This is a trick questions because actually the variable is positively skewed. 
E) Both (a)and (c). 
A) The median is the average of the mean and mode. 
B) The median is higher than the mean. 
C) The median is the arithmetic mean of the mode. 
D) This is a trick questions because actually the variable is positively skewed. 
E) Both (a)and (c).

Question 4

This question relates to the output below:   Which of the following is true?

Accepted Answer

A) The variable is positively skewed because all the values are positive. 
B) The mode is calculated by taking the sum of the scores and dividing by the number of scores (25). 
C) The median is an approximation to the mode. 
D) Most distributions are skewed so we call these skewed distributions "normal" distributions. 
E) The table provides descriptive rather than inferential statistics. 
A) The variable is positively skewed because all the values are positive. 
B) The mode is calculated by taking the sum of the scores and dividing by the number of scores (25). 
C) The median is an approximation to the mode. 
D) Most distributions are skewed so we call these skewed distributions "normal" distributions. 
E) The table provides descriptive rather than inferential statistics.

Question 5

This question relates to the output below.Here scores for two variables, pride and prejudice, were collected from a sample of 100 people.Unfortunately scores for 75 participants on the pride variable were lost, but responses were obtained for all participants on the prejudice variable.From the SPSS output, which of the following statements is true?

Accepted Answer

A) Pride is bimodal. 
B) Pride and prejudice have very similar distributions despite the different sample sizes. 
C) Prejudice should have a higher variance because there are more people in the sample. 
D) Prejudice should have a higher variance because there are more people in the population. 
E) Both (a)and (d). 
A) Pride is bimodal. 
B) Pride and prejudice have very similar distributions despite the different sample sizes. 
C) Prejudice should have a higher variance because there are more people in the sample. 
D) Prejudice should have a higher variance because there are more people in the population. 
E) Both (a)and (d).

This question relates to the output below: The variable is not bimodal because

This question relates to the output below: Which of the following statements is not true?

This question relates to the output below: How can see that this variable is negatively skewed?

This question relates to the output below: Which of the following is true?

Research in Psychology: Objectives and Ideals

Research Methods

Experimental Design

Survey Design

Some Principles of Statistical Inference

Examining Differences Between Means: The T-Test

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Exam 5: Descriptive Statistics