The technical team of a university would like to perform an analysis on pre-recorded lecturevideos. Let X be the video length in minutes. The value of X is collected for a random sampleof 85 videos, and the results obtained are summarized in the table below. The correspondingprobabilities computed using = 50 and s = 15 are also given in the table.Length (min), x< 3535 – 45 | 45 – 5555 – 65> 65Observed frequencies, O18301813Probabilities0.15870.21080.26100.21080.1587Perform a x goodness-of-fit analysis with a significance level of 0.05 to test the hypothesisthat these data follow a normal distribution. Use 4 decimal places for the intermediate steps.

It is needed to check whether the data follows normal distribution.

Answered: The technical team of a university…

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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Three items are drawn in randomly from a population of 7 items. The item drawn may be defective or non-defective.Random variable is the occurrence of non-defective items. Total defective items in the population are two. Make a frequency distribution table of the random variable. Find the expected value of non-defective items in the random experiment.
Three items are drawn in randomly from a population of 7 items. The item drawn may be defective or non-defective. Random variable is the occurrence of non-defective items. Total defective items in the population are two.a. Make a frequency distribution table of the random variable. b. Find the expected value of non-defective items in the random experiment.
4. Discrete probability distributions #1 You may calculate the answers of the following questions using the appropriate probability distribution function from the equations in your textbook. (You will need to read the questions first to determine the appropriate distribution.) However, you may also determine these answers by using the Distributions tool. Select the appropriate distribution from the dropdown box in the upper left-hand corner. Set the parameters accordingly, and select the radio button in the lower left-hand corner depending on whether you want the probability of a single outcome (left) or a cumulative probability (right). Who's so vain? A survey conducted by the American Association of Motor Vehicle Administrators (AAMVA) and Stefan Lonce, author of LCNS2ROM- License to Roam: Vanity License Plates and the Stories They Tell, reveals that Virginia motor vehicle owners are the vainest. Approximately 16% of Virginia license plates are vanity plates. Select a Distribution…
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