Question

Unless you have sufficient evidence otherwise, you must assume that:

Group of answer choices

both the null and alternative hypotheses are true

the alternative hypothesis is true

neither the null nor alternative hypotheses are true

the null hypothesis is true

Question 2

Which of the following refers to the group you wish to generalize your results to?

Group of answer choices

population

sample

sampling error

general group

Question 3

If there is no difference between sample and population values, you will have:

Group of answer choices

high sampling error

low, but positive sampling error

no sampling error

cannot be determined

Question 4

This is a statement of equality or no difference between sets of variables:

Group of answer choices

a null hypothesis

a research hypothesis

a nondirectional research hypothesis

a directional research hypothesis

Question 5

This is a hypothesis that reflects the difference between groups, but does not specify the direction of the difference.

Group of answer choices

a null hypothesis

a directional research hypothesis

a nondirectional research hypothesis

none of the above

Question 6

This is a hypothesis that reflects the difference between groups and also specifies the direction of the difference.

Group of answer choices

a null hypothesis

a nondirectional research hypothesis

a directional research hypothesis

none of the above

Question 7

Which of the following is a directional test?

Group of answer choices

a one-tailed test

a two-tailed test

a Type II error

the sampling error

Question 8

Which of the following is a nondirectional test?

Group of answer choices

a one-tailed test

a two-tailed test

a Type II error

the sampling error

Question 9

Which of the following symbols represents the null hypothesis?

**please excuse the lack of subscript, it will not allow it**

Group of answer choices

H1

Ha

X1

H0

Question 10

What are the two main categories of hypotheses?

Group of answer choices

null and research

null and sample

research and population

research and sample

Question 11

What do we call a hypothesis that refers to other variables or phenomena that may have caused the IV and DV to be related in a given sample? [ANSWER1]

Answer 1

1.)

Unless you have sufficient evidence otherwise, you must assume that:

the null hypothesis is true.

2.)

Which of the following refers to the group you wish to generalize your results to?

we always analyze or draw samples to study the population (in general).

3.)

If there is no difference between sample and population values, you will have:

We take samples and if the value of the sampled means equal to the population value, then we say that there is no error(if exactly equal).

4.)

This is a statement of equality or no difference between sets of variables:

Null hypothesis( it is also known as the hypothesis of no difference)

Mathematically,

So, we mostly take the null hypothesis with variables having no difference.

5.)

This is a hypothesis that reflects the difference between groups but does not specify the direction of the difference.

a nondirectional research hypothesis

Mathematically,

It defines no direction that is towards left or right. (So, nondirectional research hypothesis)

6.)

This is a hypothesis that reflects the difference between groups and also specifies the direction of the difference.

a directional research hypothesis

Mathematically,

which shows the values have the direction of either left or towards the right in the research hypothesis.

7.)

Which of the following is a directional test?

One-tailed test.

Mathematically,

which shows the calculated values will have a single direction or in a single tail either the positive tail or in the negative tail.

8.)

Which of the following is a nondirectional test?

Two-tailed test

Mathematically,

It defines no direction that is the value may be in the towards the left or right direction. (So, nondirectional research hypothesis)

9.)

Which of the following symbols represents the null hypothesis?

10.)

What are the two main categories of hypotheses?

The two main categories are null and research.

11.)

What do we call a hypothesis that refers to other variables or phenomena that may have caused the IV and DV to be related in a given sample?

The hypothesis is the research hypothesis.

In the correlation hypothesis we take:

Null hyypothesis as the two variable do not have effect on each other or no correlated

Research hypothesis