subject
Mathematics, 21.04.2021 20:00 lindsaynielsen13

A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a standard deviation of 77 minutes with a mean life of 551 minutes. If the claim is true, in a sample of 135 batteries, what is the probability that the mean battery life would be greater than 545.6 minutes? Round your answer to four decimal places.​

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 12:30
Timed***how else can the sequence for row 1 be written? notice: square a: 1 penny = 20 square b: 2 pennies = 21 square c: 4 pennies = 22 the sequence formed is geometric, with a1 = , and common ratio r = .
Answers: 1
question
Mathematics, 21.06.2019 14:30
What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25
Answers: 3
question
Mathematics, 21.06.2019 15:50
Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?
Answers: 2
question
Mathematics, 21.06.2019 18:00
Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?
Answers: 2
You know the right answer?
A quality control expert at LIFE batteries wants to test their new batteries. The design engineer cl...
Questions
question
Mathematics, 09.10.2020 07:01
question
Mathematics, 09.10.2020 07:01
Questions on the website: 13722367