Mathematics, 23.11.2020 23:50 sanchezr7187
The lathe1 data set from the alr4 package contains the results of an experiment on characterizing the life of a drill bit in cutting steel on a lathe. Two factors were varied in the experiment, Speed and Feed rate. The response is Life, the total time until the drill bit fails, in minutes. The values of Speed and Feed in the data have been coded by computing Speed = (Actual speed in feet per minute â 900)/300 Feed = (Actual feed rate in thousandths of an inch per revolution â 13)/6 .(a) Starting with the full second-order model E(Life|Speed, Feed) = β0+β1Speed+β2Feed+β11Speed2+β22Feed 2+β12SpeedâFeed, use the BoxâCox method to show that an appropriate scale for the response is the logarithmic scale.(b) Find the two cases that are most influential in the fit of the quadratic mean function for log(Life), and explain why they are influential. Delete these points from the data, refit the quadratic mean function, and compare with the fit with all the data.
Answers: 1
Mathematics, 21.06.2019 19:40
The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?
Answers: 2
Mathematics, 21.06.2019 19:40
The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пОН
Answers: 1
Mathematics, 21.06.2019 20:30
You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box
Answers: 2
The lathe1 data set from the alr4 package contains the results of an experiment on characterizing th...
Mathematics, 08.02.2022 17:00
Mathematics, 08.02.2022 17:00
Geography, 08.02.2022 17:00
Mathematics, 08.02.2022 17:00
Chemistry, 08.02.2022 17:00
Mathematics, 08.02.2022 17:00