Economists are interested in predicting the exchange rate of the Canadian dollar (for $1 U.S.) using the OECD price index, the manufacturing producer price index (PPI) and the consumer price index (CPI). A random sample of 14 years between 1965 and 2003 were selected. All the needed assumptions and conditions are satisfied. A portion of Minitab output is below. Variable Setting oecd 84 ppi 4 cpi 95 Prediction 95% CI 95% PI (1.454, 1.514) (1.433, 1.532) Interpret the 95% interval for the mean (average) exchange rate in the context of the