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Forecast temperatures

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Assume that you want to use a 0.05 significance level to test the claim that paired sample data come from a population for which the mean difference is Ud = 0. Find (a) d-, (b) Sd, (c) the t test statistic, and the critical values.

Listed below are predicted high temperatures that were forecast before different days.

Predicted high temperature forecast three days ahead 79, 86, 79, 83, 80
Predicted high temperature forecast five days ahead 80, 80, 79, 80, 79

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Solution Summary

The expert examines forecasting temperatures from a statistical trend.

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First, let me list the table for d where d is the difference between Predicted high temperature forecast three days ahead and Predicted high temperature forecast five days ahead

Predicted high temperature forecast three days ahead ...

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