Q5. (a) For what range of values can the coefficient of correlation of a sample of 52 pairs be considered significantly different from zero at the 1% level of significance? (b) Do the following for...


Q5. (a) For what range of values can the coefficient of correlation of a sample of 52 pairs be<br>considered significantly different from zero at the 1% level of significance?<br>(b) Do the following for the data<br>Days after emergence, X<br>Average dry matter<br>Conventional, Y,<br>Yield (g'plant) Improved,<br>Y2<br>9.<br>35<br>52<br>170<br>270<br>49<br>50<br>71<br>180<br>91<br>250<br>270<br>3 10<br>104<br>Compute the coefficients of correlation between X and Y1, Yi and Y2, and X and<br>Y2<br>Compute coefficients of determination between X and Y 1, and X and Y2. Interpret<br>these coefficients.<br>ii)<br>iii)<br>Test the hypothesis that the population correlation coefficient between Yi and Y:<br>is 0.80 against the alternative that it is not.<br>|Simple Regression & Correlation]<br>

Extracted text: Q5. (a) For what range of values can the coefficient of correlation of a sample of 52 pairs be considered significantly different from zero at the 1% level of significance? (b) Do the following for the data Days after emergence, X Average dry matter Conventional, Y, Yield (g'plant) Improved, Y2 9. 35 52 170 270 49 50 71 180 91 250 270 3 10 104 Compute the coefficients of correlation between X and Y1, Yi and Y2, and X and Y2 Compute coefficients of determination between X and Y 1, and X and Y2. Interpret these coefficients. ii) iii) Test the hypothesis that the population correlation coefficient between Yi and Y: is 0.80 against the alternative that it is not. |Simple Regression & Correlation]

Jun 08, 2022
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