Answer Happy

2.
A group of researchers studied the effect of acid rain on Wildlife and collected n - 9 samples from streams in different States. They recorded the pH (X) of the water (i.e. units above pH 7), and the BCI, a measure of biological diversity (Y). The data obtained is summarized below. DATA Observation Units of BCIL) 15.5 18.0 2 3 16.7 pH above 7 (%) 0.68 0.79 0.84 0.94 1.10 1.14 1.30 1.41 1.46 RAL 5 6 Conlon 7 21.7 228 243 276 28.3 20.7 8

Find the coefficient of determination between pH and BCI (round to the nearest hundredth; place your answer in the box below)

The following is the ANOVA obtained from a regression analysis. ANOVA Source of Variation Degree of Freedom Mean Squares F-calculated 1 REGRESSION ERROR LL TOTAL Sum of Squares 78.4 488.5 121 Your are interested to evaluate the following hypothesis: Ho B1-B2 ---against-HA B1+B2 1. How many observation were used in this experiment? (place your answer in the box below) 2. Evaluate the F calculated for the regression and indicate if you are going to reject(R) or fail to reject(FR) the null hypothesis using an o-001 (R/FR, place your answer right beside the calculated number of treatments) Full credit will be given if 1 and 2 correct.