# Chapter 1. Testing Lack of Correlation

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1:14

### Question 1.1

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Correct. The tests are the same.
Incorrect. The tests are the same.
2
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3:05

### Question 1.2

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Correct. This is a correct statement.
Incorrect. This is a correct statement.
2
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4:07

### Question 1.3

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Correct. Without a measure of variability, we cannot get a P-value. And without a P-value we cannot decide whether to reject H0.
Incorrect. Without a measure of variability, we cannot get a P-value. And without a P-value we cannot decide whether to reject H0.
2
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4:25

### Question 1.4

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Correct. We do need the means and standard deviations and we do need a linear relationship for correlation, but we don’t need to do prediction.
Incorrect. We do need the means and standard deviations and we do need a linear relationship for correlation, but we don’t need to do prediction.
2
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4:57

### Question 1.5

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Correct. All inferential procedures have conditions that need to be met, including testing correlation.
Incorrect. All inferential procedures have conditions that need to be met, including testing correlation.
2
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5:13

### Question 1.6

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Correct. Since P-value < 0.0001 is less than α = 0.05, we can reject H0.
Incorrect. Since P-value < 0.0001 is less than α = 0.05, we can reject H0.
2
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5:37

### Question 1.7

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Correct. Since the relationship is significant, the draft was not fair because those with birthdays late in the year were more likely to have a high draft number (i.e., a draft number close to 1.0.)
Incorrect. Since the relationship is significant, the draft was not fair because those with birthdays late in the year were more likely to have a high draft number (i.e., a draft number close to 1.0.)
2
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