A researcher finds a correlation of r x y = + 0.40 with a sample of n = 25  bi-variate observations. Given a null hypothesis of H0: ρ x y = 0 and α = 0.05 , the researcher should: cant tell from the information given  reject the null hypothesis fail to reject the null hypothesis

Q: Find y. y= Y₁ 19 27 15 34 29

A: Given that  X 4 5 12 17 22 Y 19 27 15 34 29

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Q: with a correlation coefficient of r=-0.122. You want to predict what value (on average) for the…

A: Given : y = -1.274x +139.431

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A: F statistic for this test  F=6.4526

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Q: stribution: o = 3 o2 = 4 03 = 5 r23 = 0.4 r31 = 0.6r12 = 0.7 %3D %3D

A: σ1=3σ2=4σ3=5r23=0.4r31=r13=0.6r12=0.7

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Q: t of data (n = 20). With = 42. - 1.249x + 32.208 7. You want to predict what value je of 70 as the…

A: Given : y = -1.249x + 32.208  correlation coefficient of r = - 0.647.

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Q: What is the predicted explanatory value?

A: here use given Regression line

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A: Solution: n= 82 observation  The estimated regression equation is  y^= 4.373x+9.596

Q: 95 63 70 56 70 40 35 28 d regression equation for this data is ý = 25.870 + 0.291x, where x = price…

A: Since the question has multiple sub parts we will solve the first part only.  Please resend the…

Q: y = X,B1 + X,B2 + ɛ where y = (y1, .., Yn)', X1 and X2 are random except the intercept term (i.e.,…

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