Mathematics, 21.06.2020 04:57 yolo1430
A manufacturer of air compressors claims that the lifetime of their compressors under typical use has a mean life of 60 months with a standard deviation of 4 months, but the comparable air compressors from the competing manufacturer has a mean life of 55 months with a standard deviation of 10 months. Suppose we randomly select 64 compressors from this manufacturer and 80 compressors from the competing manufacturer. LetX, and SZ be the sample mean and the sample variance of lifetimes for the sample taken from this manufacturer. LetX2 and S2 be the sample mean and the sample variance of lifetimes for the sample taken from the competing manufacturer
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 21:50
Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d
Answers: 1
Mathematics, 21.06.2019 22:30
Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?
Answers: 2
Mathematics, 21.06.2019 23:30
Jane has 5 nickels.john has 3 dimes.jane says she has a greater amount of money.with the information given,is she correct?
Answers: 3
You know the right answer?
A manufacturer of air compressors claims that the lifetime of their compressors under typical use ha...
Questions
Biology, 26.07.2019 13:30
History, 26.07.2019 13:30
Social Studies, 26.07.2019 13:30
Business, 26.07.2019 13:30
Social Studies, 26.07.2019 13:30
Chemistry, 26.07.2019 13:30
Chemistry, 26.07.2019 13:30
