Mathematics, 21.10.2020 17:01 nuhaminbruk
The Acme Battery Company has developed a new cell phone battery. On average, the battery lasts 60 minutes on a single charge. The standard deviation is 4 minutes. Suppose the manufacturing department runs a quality control test. They randomly select 7 batteries. The standard deviation of the selected batteries is 6 minutes. a. What would be the chi-square statistic represented by this test? b. What are the degrees of freedom for the chi-square statistic? c. Suppose they repeated the test with a new random sample of 7 batteries. What is the probability that the standard deviation in the new test would be greater than 6 minutes? (Use the applet)
Answers: 1
Mathematics, 21.06.2019 23:00
Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship
Answers: 3
Mathematics, 22.06.2019 00:00
As a salesperson you get $50/day and $3.60/each sales you make.if you want to make $60 in one day, how many sales would you need need to make ? a 3b 4c 5d 6 show work.
Answers: 1
The Acme Battery Company has developed a new cell phone battery. On average, the battery lasts 60 mi...
Biology, 21.01.2021 06:20
Mathematics, 21.01.2021 06:20
Mathematics, 21.01.2021 06:20
Computers and Technology, 21.01.2021 06:20
Mathematics, 21.01.2021 06:20
English, 21.01.2021 06:20
Mathematics, 21.01.2021 06:20
Physics, 21.01.2021 06:20
Mathematics, 21.01.2021 06:20
Mathematics, 21.01.2021 06:20
Mathematics, 21.01.2021 06:20