Mathematics, 14.10.2020 14:01, khia22
A manufacturer of household washing machines wants to determine the effectiveness of the type of detergent used (three brands: A, B, and C) and the length of time for the washing cycle (three times: 18, 20, and 22 minutes). The manufacturer prepared 18 standard household laundry loads (having equal amounts of dirt and the same total weight) to conduct the study. The researcher recorded the amount of dirt removed. Use a 5% significance level, for all hypothesis tests and confidence intervals. How many treatments were used in this experiment
Answers: 1
Mathematics, 21.06.2019 18:00, puffley
10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.
Answers: 1
Mathematics, 21.06.2019 18:00, amandaclark255
Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer
Answers: 1
Mathematics, 21.06.2019 20:00, ayoismeisalex
He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean and standard deviation according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%
Answers: 3
A manufacturer of household washing machines wants to determine the effectiveness of the type of det...
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