Question 11 Approximately what percentage of scores falls between -1 and +1 standard deviations around the mean under the normal curve? Group of answer choices A68% B34% C95% D14% Flag question:...

Question 11

Approximately what percentage of scores falls between -1 and +1 standard deviations around the mean under the normal curve?

Group of answer choices

A68%

B34%

C95%

D14%

Flag question: Question 12

What percentage of all scores fall above az score of +1?

Group of answer choices

50%

34%

16%

68%

Flag question: Question 13

In a distribution with a mean of 30 and a standard deviation of 5, how many standard deviations is 60 from the mean?

Group of answer choices

-6

Flag question: Question 14

When you flip a coin 10 times, how many possible combinations or outcomes could you have?

Group of answer choices

2²

2¹⁰

10²

10¹⁰

Flag question: Question 15

If you know thez score, standard deviation(s), and mean (M), what formula would you use to compute the raw score (X)?

Group of answer choices

M =z(s) +X

X = (z+s) ÷ M

z = (M –X) ÷s

X =z(s) + M

Flag question: Question 16

What is thezscore when you have a raw score of 85, a group mean of 75, and a standard deviation of 5?

Group of answer choices

-2.5

2.5

-2.0

2.0

Flag question: Question 17

Events that appear in the extremes of the normal curve have a very small probability of occurring.

Group of answer choices

True

False

Flag question: Question 18

About half of all scores fall between the mean and 1 standard deviation below the mean.

Group of answer choices

True

False

Flag question: Question 19

The term for error that cannot be controlled for is ______.

Group of answer choices

Type I error

probability

Type II error

chance

Flag question: Question 20

The first step in testing a hypothesis is to do which of the following?

Group of answer choices

Set the level of risk associated with the null hypothesis.

Select the appropriate test statistic.

Provide a statement of the null hypothesis

Compute the test statistic value.

Jun 08, 2022

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Question 11 Approximately what percentage of scores falls between -1 and +1 standard deviations around the mean under the normal curve? Group of answer choices A68% B34% C95% D14% Flag question:...

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