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One Way Analysis of Variance

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A study reported in the Journal of the American Medical Association investigated the cardiac demands of heavy snow shovelling. Ten healthy mean underwent exercise testing with a treadmill and a cycle ergometer modified for arm cranking. The men then cleared two tracts of heavy, wet snow by using a lightweight plastic shovel and an electric snow thrower. Each subject's heart rate, blood pressure, oxygen uptake, and perceived exertion during snow removal were compared with the values obtained during treadmill and arm-crank ergometer testing. Suppose the following table gives the heart rates in beats per minute for each of the 10 subjects.

At ? = .05 level of significance, test for any significant difference.

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Solution Summary

This solution illustrates one factor analysis of variance using Excel Data Analysis Add-In.

Solution Preview

Please see the attachment for solution.

Step 1: Open the Excel file and enter the data (see the first sheet "Data").

Step 2: In Excel 2003 or earlier, pull down "Tools" to "Data Analysis" In Excel 2007 click on Data then Data Analysis.

Step 3: Select Anova: Single Factor.

Step 4: In the Dialog box, enter the input range that corresponds to the data columns ($A$1:$D$11) and click OK. Check the option ...

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