Whonose Economic Forecasting, Inc. and Wazzup Econometrics have the same mean error per year in fore
Question: Whonose Economic Forecasting, Inc. and Wazzup Econometrics have the same mean error per year in forecasting the stock market over the last ten years. However, the standard deviation for Whonose is 40 points and 30 points for Wazzup. At the 0.05 significance level can we conclude that Wazzups forecast is more accurate?
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