Part 2 of 3(b) What is the probability that the sample mean lifetime is less than 1540 hours?The probability that the sample mean lifetime is less than 1540 hours isPart: 2 / 3Part 3 of 3(c) What is the probability that the sample mean lifetime is between 1490 and 1550 hours?The probability that the sample mean lifetime is between 1490 and 1550 hours is Lightbulbs: The lifetime of lightbulbs has a mean of 1500 hours and a standard deviation of 120 hours. A sample of 40 lightbulbs is tested. Use theCumulative Normal Distribution Table or technology. Round your answers to four decimal places.Part: 0 / 3Part 1 of 3(a) What is the probability that the sample mean lifetime is greater than 1520 hours?The probability that the sample mean lifetime is greater than 1520 hours isPart: 1/ 3Part 2 of 3(b) What is the probability that the sample mean lifetime is less than 1540 hours?The probability that the sample mean lifetime is less than 1540 hours is

Let X be the random variable from normal distribution with mean (μ) = 1500 hours and standard…

Answered: Part 2 of 3 (b) What is the probability…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In the country of United States of Heightlandia, the height measurements of ten-year-old children are approximately normally distributed with a mean of 53.3 inches, and standard deviation of 2.2 inches.What is the probability that the height of a randomly chosen child is between 51.3 and 57.1 inches? Do not round until you get your your final answer, and then round to 3 decimal places.Answer=___________ (Round your answer to 3 decimal places.)
Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?
The result of a nationwide aptitude test in mathematics are normally distributed sith mean=63 and standard deviation =5 a. What is the probability of scores greater than 65? b. What is the probability of scores less than 65?
Plzzz explain
The weights of all the turkeys sold in Fairfax County in 2020 were recorded in the data set “Fairfax Turkey Weights” found in the histogram. The weights are presented in pounds. There are 235,428 turkeys in this population. Calculate the probability that, in a random sample of eight turkeys, the mean weight is between 17 and 20 pounds. First, draw a picture with the rounded mean and values labeled and the shaded area representing the desired probability. Next, take a picture of your hand drawn sketch and upload it (if you do not have this technology, you may use any other method (i.e. Microsoft paint) to sketch the image). Then, complete this part by standardizing and using the Standard Normal Table to obtain this probability. Show your work “by hand”.
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