(8) Regression, correlation, and hypothesis testing

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9 Terms

1
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If y = axn then log(y) =

log(a) + nlog(x)

2
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If y = kbx then log(y) =

log(k) + xlog(b)

3
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PMCC (Product moment correlation coefficient)

Describes linear correlation between two variables

Takes values between -1 and 1

4
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r = 1

Perfect positive linear correlation

5
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r = -1

Perfect negative linear correlation

6
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r = 0

No linear correlation

7
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Symbol for PMCC of a sample

r

8
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Symbol for PMCC of a whole population

ρ

9
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Hypothesis test brief outline

Ho: ρ = 0

H1: ρ > / < / ≠ 0

Quote sample size and sig. level

Use tables and conclude via comparison of this to test statistic