Statistics: Hypothesis Testing – #388

Question: Two-Day Forecast. Figure 7.13 shows a scatter diagram in which the actual high temperature for the day is compared with a forecast made two days in advance.

The data are from the same two weeks as those in Figure 7.6. Estimate the correlation coefficient and discuss what these data imply about weather forecasts. Do you think you would get similar results if you made similar diagrams for other two-week periods? Why or why not?


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