The mean for the amount of dirt removed at all three different water temperature by the two brand of laundry detergent are equal.

Question

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Answer 1

The average amount of dirt taken out by both laundry detergent brands is the same for all three water temperatures.

Answer 2

The mean for the amount of dirt removed at all three different water temperature by the two brand of laundry detergent are not equal.

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Answer 3

The average amount of dirt removed by the two brands of laundry detergent varies across all three water temperatures.