I need help on this The standard deviation is Question 5 opt

I need help on this

The standard deviation is

Question 5 options:

the square of the variance.

the square root of the variance.

smaller than the mean.

the difference between the highest and lowest scores.

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Question 6 (1 point)

If the mean I.Q. is 100 and the standard deviation of I.Q. scores is 15, then an I.Q. of 130 will have a z score (or standard score) of

Question 6 options:

1.00

0.00

2.00

-2.00

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Question 7 (1 point)

Inferential statistics allow you to decide whether a difference between the experimental and the control group is due to _______________ or ________________.

Question 7 options:

manipulation; chance

manipulation; experimental error

sampling error; independent variable

independent variable; experimental error

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Question 8 (1 point)

The null hypothesis suggests that the two samples come from ___________ distribution(s), and the experimental hypothesis suggests that the two samples come from _____________ distribution(s).

Question 8 options:

different; different

different; the same

the same; different

the same; the same

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Question 9 (1 point)

The power of a statistical test refers to its ability to

Question 9 options:

reject false null hypotheses.

reject false experimental hypotheses.

reject true null hypotheses.

reject true experimental hypotheses.

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Question 10 (1 point)

Simple analysis of variance is used in designs having

Question 10 options:

one independent variable

more than one independent variable

more than one independent variable (IV) but less than four IVs

more than one dependent variable

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Question 11 (1 point)

The number of participants in a study is denoted by

Question 11 options:

s.

n.

z.

r.

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Question 12 (1 point)

A _____________ is a complete set of measurements.

Question 12 options:

sample

population

random sampling

parameter

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Question 13 (1 point)

_____________ is one way of ensuring that a sample is representative of the population.

Question 13 options:

The two-tailed test

The between-subjects design

The sign test

Random sampling

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Question 14 (1 point)

If we conduct an experiment on average young, white, college males, inferential statistics allow us to generalize to the population of

Question 14 options:

average young, white, college males.

college male students.

college students.

young adults

	the square of the variance.
	the square root of the variance.
	smaller than the mean.
	the difference between the highest and lowest scores.

Solution

Q5.
The square root of the variance.

Q6.
P(X = 130) = (130-100)/15
= 30/15 = 2
Q8.
the same; different

Q9.
reject true experimental hypotheses.

Q11. n

Q12.
population