Correlation and Regression.pdf

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Decision criterion depends on H1H1Reject H0 if1) ρ < 0cal t < -tab t (n-2 α %)2) ρ > 0cal t > tab t (n-2 α %)3) ρ ≠ 0|cal t | > tab t (n-2, α/2 %)

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Decision criterion depends on H1H1Reject H0 if1) ρ < 0cal t < -tab t (n-2 α %)2) ρ > 0cal t > tab t (n-2 α %)3) ρ ≠ 0|cal t | > tab t (n-2, α/2 %)

To test the hypothesis H0 : ρ = ρ0 (ρ0 ≠ 0 )The test statistic is given byŻ = ( z – ξ0)√(n-3)Where z =12log1e1rr<strong>and</strong> ξ =12log e11If ρ = ρ0 then ξ = ξ0

Page 2 and 3: Graphically we can check whetherthe
Page 4 and 5: Scatter plot
Page 6 and 7: For calculation purpose we use thes
Page 10 and 11: Under H0 Ż follows standard normal
Page 12: For the given data we haven = 12
Page 15 and 16: Regression equation of X on Y is gi
Page 19: References Descriptive Statistics.

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