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Working with Data: Two-Sample Tests of Hypothesis

The following data resulted from a taste test of two different chocolate bars. The first number is a rating of the taste, which could range from 0 to 5, with a 5 indicating the person liked the taste. The second number indicates whether a "secret ingredient" was present. If the ingredient was present a code of "1" was used, and a "0" otherwise. At the .05 significance level, does this data show a difference in the taste ratings?

Rating With/(W/O) Rating With/(W/O)
............................................
3 1 1 1
1 1 4 0
0 0 4 0
2 1 2 1
3 1 3 0
1 1 4 0

Solution Summary

The solution gives step by step procedure for comparing the population mean using independent sample t test. It includes the relevant formula and a graph in an attached word document.

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