subject
Mathematics, 06.05.2020 02:13 xojade

A recent study of the lifetimes of cell phones found the average is 24.3 months. The standard deviation is 2.6 months. If a company provides its 33 employees with a cell phone, find the probability that the mean lifetime of these phones will be less than 23.8 months. Assume cell phone life is a normally distributed variable, the sample is taken from a large population and the correction factor can be ignored. Round the final answer to at least four decimal places and intermediate -value calculations to two decimal places.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 14:40
Which system of linear inequalities is represented by the graph? !
Answers: 1
question
Mathematics, 21.06.2019 20:00
Given ab and cb are tangents of p, and m =10°. what is the measure of abp?
Answers: 1
question
Mathematics, 21.06.2019 20:30
William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)
Answers: 2
question
Mathematics, 21.06.2019 23:00
What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3
Answers: 1
You know the right answer?
A recent study of the lifetimes of cell phones found the average is 24.3 months. The standard deviat...
Questions
question
Arts, 08.12.2020 19:10
question
Mathematics, 08.12.2020 19:10
question
Mathematics, 08.12.2020 19:10
question
Mathematics, 08.12.2020 19:10
question
Mathematics, 08.12.2020 19:10
Questions on the website: 13722367