ST 512 Quiz: ST 512 NCSU Quiz1 sum08
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Give expressions for answers where possible, as partial credit may be awarded in cases where expressions are correct, but numerical answers are not. Find in the output a p-value for a test of the hypothesis that the mean yield does not depend on cluster count. Report an estimate. (e) the residual for the observation in 1975 is hidden. Deduce its value. (f) a hurricane wiped out the 1972 crop. For insurance purposes, an estimate of what the yield would have been is needed. Given that the cluster count was x = 125. 0, provide a 95% prediction interval for what the yield would have been. 0. 0526: (40 points) in a random sample of n = 40 children, a simple linear regression of weight in kg (y) on height in cm (x) gives an error mean square of m s[e] = 51. 7. The least squares regression line and sample means and standard deviations are given below:
