Question

1. You want to determine whether the brand of laundry detergent used and the temperature affects the amount of dirt removed from your laundry. To this end, you buy two different brands of detergent (“Best Clean” and “Super Clean”) and choose three different temperature levels (“cold”, “warm”, and “hot”). Then you divide your laundry randomly into 6×4 piles of equal size and assign each 4 piles into the combinations of (“Super Clean” and “Best Clean”) and (”cold”,”warm”, and “hot”).

	Cold	Warm	Hot
Best Clean	4,5,6,5	7,9,8,12	10,12,11,9
Super Clean	6,6,4,4	13,15,12,12	12,13,10,13

1. Setup the appropriate Null and Alternate hypotheses.

2. Perform an ANOVA on this data. Test the effects of the brand, temperature, and interaction on the quality of the wash (amount of dirt removed).

Answer 1

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Snce ㅏ value of detergent, trmrotue ans interaction 〈 0,05 e overall model ul S9DtPCao- ㄧ一the interaction u Sgnificant Scanned. WI Camscanne