Question 4 2 points Conceptually what is the standard deviat

Question 4 (2 points)

Conceptually, what is the standard deviation?

Question 4 options:

Half the difference between the highest and lowest scores in a distribution.

The difference between the highest and lowest scores in a distribution.

The average amount that the scores in a distribution differ from the mean.

The mean of the squared scores.

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Question 5 (2 points)

A researcher shows that doctors who act more confidently are liked better by their patients, but only up to a point. If they act too confidently, their patients start to like them less. Which of the following best describes the correlation between doctor\'s level of confidence and patient\'s ratings of likability for the doctor?

Question 5 options:

There is a nonlinear relationship between physician confidence and patient liking.

There is a positive relationship between physician confidence and patient liking.

There is a negative relationship between physician confidence and patient liking.

There is no relationship between physician confidence and patient liking.

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Question 6 (2 points)

Which of the following is true of outliers?

Question 6 options:

The researcher can choose to remove them before conducting statistical analyses, but their removal should have a reasonable justification.

They should be included when calculating descriptive statistics but excluded when calculating inferential statistics.

They must be included in all statistical analyses.

They must be removed from the data set before calculating any statistics.

Solution

4) is a measure that is used to quantify the amount of variation or dispersion of a set of data values

The average amount that the scores in a distribution differ from the mean.

5)

There is a negative relationship between physician confidence and patient liking.

6)

The researcher can choose to remove them before conducting statistical analyses, but their removal should have a reasonable justification.