Question: A chi square test is easily implemented on a computer. With the counts from Example 8 in columns 1-4, the MINITAB commands produce the output

A chi square test is easily implemented on a computer. With the counts


31 19 18 42 2223 25 28 25


from Example 8 in columns 1-4, the MINITAB commands

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produce the output Expected counts are printed below observed counts

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Repeat the analysis using only the data from the first three methods.

31 19 18 42 2223 25 28 25

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