Question

Question 1

For Chi Square tests, all tests discussed can be used for both experiments and surveys

1. True
2. False

Question 2

Chi Square tests have an assumption of normality

1. True
2. False

Question 3

For a Chi Square test of Association, you ask if mouse hair color (black, grey or white) is associated with whisker length (short, medium or long). The df for this analysis would be: Give answer as X

Question 4

The value of X^2 can be negative, zero, or positive

1. True
2. False

Question 5

Chi Square tests on qualitative data can be either left or right tail tests

1. True
2. False

Question 6

What chi square test or tests on qualitative data can used to analyze the results of experiments

1. Just tests of Homogeneity
2. tests of homogeneity and goodness of fit
3. tests of homogeneity, goodness of fit and tests of association
4. just tests of association

Question 7

You would use a chi square goodness of fit test to address the question of whether there is a link between smoking (yes or no) and being an in state student (yes or no)

1. True
2. False

Question 8

what are the degrees of freedom for #7 above

1. 1
2. 2
3. 3
4. 4

Question 9

You want to know if Pepsi or coke drinkers are more likely to consume the diet version over the regular version. You gather the following data

Pepsi Coke

Diet    35. 65

Regular 50. 50

What statistical test will you use?

1. Chi square goodness of fit test
2. Chi Square Test of Association
3. Chi Square test of Homogeneity

Question 10

what is the correct degrees of freedom for #9 above?

1. 1
2. 2
3. 199
4. 193

Answer 1

Answer:

1) For Chi Square tests, all tests discussed can be used for both experiments and surveys.

This statement is False.

For Chi Square tests, all tests discussed can be used for only surveys questions.

2) Chi Square tests have an assumption of normality.

This statement is True.

The chi-square goodness-of-fit test can be used to test for normality to test hypothesis. And for variance test an assumption of normality used.

3) For a Chi Square test of Association, you ask if mouse hair color (black, grey or white) is associated with whisker length (short, medium or long). The df for this analysis would be:

df = (row - 1)(column - 1)

df = (3-1)(3-1)

df = 4

4) The value of X^2 can be negative, zero, or positive.

This statement is​​​ false.

Chi-square is always positive, it never goes below zero.

5) Chi Square tests on qualitative data can be either left or right tail tests.

This statement is False.

Chi square test are right tail test.

As per HOMEWORKLIB RULES only first four subparts of questions to be answered. Please repost the other questions.

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