Mathematics, 08.10.2020 03:01 edgardo34
The manager of a computer retails store is concerned that his suppliers have been giving him laptop computers with lower than average quality. His research shows that replacement times for the model laptop of concern are normally distributed with a mean of 4.2 years and a standard deviation of 0.6 years. He then randomly selects records on 38 laptops sold in the past and finds that the mean replacement time is 3.9 years. Assuming that the laptop replacement times have a mean of 4.2 years and a standard deviation of 0.6 years, find the probability that 38 randomly selected laptops will have a mean replacement time of 3.9 years or less.
Answers: 1
Mathematics, 21.06.2019 17:30, taylor5384
At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?
Answers: 1
Mathematics, 21.06.2019 18:00, briseidam6683
Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.
Answers: 2
Mathematics, 21.06.2019 22:40, alialoydd11
Afunction g(x) has x-intercepts at (, 0) and (6, 0). which could be g(x)? g(x) = 2(x + 1)(x + 6) g(x) = (x – 6)(2x – 1) g(x) = 2(x – 2)(x – 6) g(x) = (x + 6)(x + 2)
Answers: 1
The manager of a computer retails store is concerned that his suppliers have been giving him laptop...
Geography, 10.09.2020 14:01
Mathematics, 10.09.2020 14:01
Mathematics, 10.09.2020 14:01
Mathematics, 10.09.2020 14:01
Mathematics, 10.09.2020 14:01
Mathematics, 10.09.2020 14:01
English, 10.09.2020 14:01
Mathematics, 10.09.2020 14:01
English, 10.09.2020 14:01
Mathematics, 10.09.2020 14:01