Question: Refer to Exercise 10 (too much information). The estimated regression equation turned out to be y = 66 6.8x. Show the 95% confidence interval

Refer to Exercise 10 (too much information). The estimated regression equation turned out to be ŷ = 66 – 6.8x. Show the 95% confidence interval estimate of the average confidence score for a population of shoppers who are presented with six alternatives.

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