Mathematics, 23.10.2020 02:01 1deanxcas1
On average, a laptop battery lasts 120 minutes with a standard deviation of 4 minutes. 6 batteries are randomly selected for a quality control test.
1. Calculate the chi square statistic for the test if the standard deviation of the selected batteries is 6 minutes.
2. If the test is repeated with a new random sample of 6 batteries. What is the probability that the standard deviation of the new test is greater than 6 minutes?
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 17:20
Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?
Answers: 3
Mathematics, 21.06.2019 21:50
Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab
Answers: 2
Mathematics, 22.06.2019 01:30
The winner of a golf tournament made five putts for birdies. the lengths of these putts are in the table shown. what is the total distance of the putts in the yards, feet, and inches?
Answers: 1
Mathematics, 22.06.2019 01:30
Which point does not lie on the graph k(x) = 8 -3 √x a. (-64, 12) b. (125, 3) c. (343, 1) d. (8, 5)
Answers: 2
You know the right answer?
On average, a laptop battery lasts 120 minutes with a standard deviation of 4 minutes. 6 batteries a...
Questions
Geography, 07.10.2020 19:01
Physics, 07.10.2020 19:01
English, 07.10.2020 19:01
Mathematics, 07.10.2020 19:01
History, 07.10.2020 19:01
Mathematics, 07.10.2020 19:01
Mathematics, 07.10.2020 19:01
Mathematics, 07.10.2020 19:01
