Example 156: An experiment was conducted to determine if there is a difference between drying times for four different brands of outdoor paints. A multiple comparison procedure was used to compare the different average drying times and produced the following intervals:

µA- µB (3, 9)

µA- µC (5, 7)

µA- µD (-15, 4)

µB- µC (-2, 8)

µB- µD (-12, -5)

µC- µD (-10, -4)

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Example 156

Sample Exams