Mathematics, 16.12.2020 14:00, odboy345
A tire company wants to determine if tires made with a new type of tread will last longer than tires made with the original type of tread. The company decides to put tires with the new tread on 10 different vehicles and tires with the original tread on 10 different vehicles. "New” is written on one slip of paper and "Original” is written on another slip of paper. The two slips are placed in a bag and thoroughly mixed. A vehicle is selected and a slip is drawn. The corresponding tread of tires is assigned to the vehicle. The slip is put back into the bag and mixed. The next vehicle is selected and a slip is drawn. The corresponding tread is assigned to the vehicle. This procedure continues until all 20 vehicles have been assigned tires of the new or original types of tread.
Does this procedure describe a completely randomized design for this experiment?
Yes, the tires are randomly assigned to each vehicle.
Yes, there are two treatments, new and original treads.
No, even though randomness is used, the procedure does not ensure that an equal number of vehicles are in both groups.
No, the company did not use 20 of the same type of vehicle to receive both treatments, the new and original treads.
Answers: 1
Mathematics, 21.06.2019 16:00, evanwall91
If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3
Answers: 2
Mathematics, 21.06.2019 20:00, allycoops666666
Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?
Answers: 1
A tire company wants to determine if tires made with a new type of tread will last longer than tires...
History, 03.07.2019 23:30
Mathematics, 03.07.2019 23:30
Mathematics, 03.07.2019 23:30
Social Studies, 03.07.2019 23:30
Mathematics, 03.07.2019 23:30
Biology, 03.07.2019 23:30