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1. The famous research team of Robert Cray and the Crayuns believes that the amount of...

1. The famous research team of Robert Cray and the Crayuns believes that the amount of rainfall is significantly linearly related to corn yield on average. Results of a simple regression on the effects of rainfall (x) on corn yield (y) showed the following sample regression line for 30 observations:

yi = 2.5 + 3.2x1; with sb1 = .11 SST = 1000, SSE = 300

Test this belief at the 10% level of significance.

a) State hypotheses

b) Calculate test statistic

c) Calculate the critical value

d) State conclusion

e) What is the variance in corn yield for this sample?

math   Statistics-And-Probability   
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