random sample of 79 companies from the Forbes 500 list (which actually consists

Question

random sample of 79 companies from the Forbes 500 list (which actually consists of nearly 800 companies) was selected, and the relationship between sales (in hundreds of thousands of dollars) and profits (in hundreds of thousands of dollars) was investigated by regression. The following results were obtained from statistical software. R2 = 0.662 s = 466.2 Variable Parameter estimate Standard error Constant –176.644 61.16 Sales 0.092498 0.0075 Suppose the researchers test the hypotheses, the p-value of the test is?

Explanation / Answer

t = 61.16 / 0.0075 = 8154.67

since t is very higher , p value will be very low , we can say that is very sure that is 0.0000

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