Over the years, it was noticed that the cost a slice of pizza and the cost of a

Question

Over the years, it was noticed that the cost a slice of pizza and the cost of a subway fare in a certain city seemed to increase by the same amounts. Let x represent the cost of a slice oi pizza and I- represent the corresponding subway fare Use the following statistics that were obtained from a random sample of costs (in dollars) of pizz a/subway fares to construct a prediction interval estimate of the subway fare with 99% confidence when the cost of a slice of pizza is $2.70 The 99% prediction interval is

Explanation / Answer

alpha / 2 = 0.005 df = 4   t = 2.776

I: 1.08 +/- 2.776 * 0.123

1.08 +/- 0.34

0.74 < y < 1.42

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