Mathematics, 30.03.2020 20:28 Juancr4539
Dr. Goodrich wanted to demonstrate that his tires were better than those of his competitor, Dr. Goodyear. From car registration and leasing records, he found 40 salespeople who drove the same model of automobile approximately the same number of miles per week. Anonymously, Dr. Goodrich hired an independent research assistant, who was unaware of the purpose of the study, to randomly assign to 20 of the sales people a new set of unmarked Goodrich tires, and to the other 20 a new set of unmarked Goodyear tires of the same price and quality. After six months and an average of 15,000 miles traveled by both groups, the assistant arranged for the salespeople to exchange tires. After another six months, and similar mileage, the assistant measured the amount of tread wear and reported that the Goodrich tires had actually worn more than the Goodyear tires.
(a) Identify the independent variable(s).
(b) Identify the dependent variable(s).
(c) Identify any confounding variable(s).
Answers: 1
Mathematics, 21.06.2019 16:30
Karen is financing $291,875 to purchase a house. she obtained a 15/5 balloon mortgage at 5.35%. what will her balloon payment be? a. $220,089.34 b. $219,112.46 c. $246,181.39 d. $230,834.98
Answers: 2
Mathematics, 21.06.2019 18:00
How many glue sticks are in a basket containing 96 scissors, if the ratio of glue sticks to scissors is 19 to 57.
Answers: 1
Mathematics, 21.06.2019 19:50
How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?
Answers: 3
Dr. Goodrich wanted to demonstrate that his tires were better than those of his competitor, Dr. Good...
Mathematics, 27.09.2020 14:01
English, 27.09.2020 14:01
Social Studies, 27.09.2020 14:01
Mathematics, 27.09.2020 14:01
Mathematics, 27.09.2020 14:01
Chemistry, 27.09.2020 14:01
History, 27.09.2020 14:01