Find out mean diviation and its co-efficient (For mean) fromthe following information:MarksNo. of students0-545-106.10-151015-201220-25825-301530-351235-401540-451245-506

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Answered: Find out mean diviation and its…

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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True or False 9. Parameters are important component in any statistical analysis. 10. The examples of parameters are the mean, median and mode.
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Part(a):In a company having 80 employees, 60 earn Rs.3.00 per hour and 20 earn Rs.2.00 per hour. (i) Determine the mean earnings per hour. (ii) Do you consider this mean hourly wage to be typical? Part (b) An examination candidate's percentages are: English, 73; French, 82; Mathematics, 57; Science; 62; History, 60. Find the candidate's weighted mean if weights of 4, 3, 3, 1, 1respectively are allotted to the subjects.
In a sample of employees at a company here were the number of days they were out (sick/personal/vacation days) last year: 1, 6, 19, 35, 5, 9, 8, 12, 2, 15, 7, 7, 11, 15, 0, 25, 20, 15, 19, 5 Using Minitab, find the following sample statistics (take a screenshot of your output from Minitab and paste it here): Mean = median = Standard deviation =IQR=
Español A coin-operated coffee machine made by BIG Corporation was designed to discharge a mean of 7.2 ounces of coffee per cup. BIG has good reason to believe that the mean amount of coffee dispensed by the machine, u, is greater than 7.2 ounces, and plans to do a statistical test of the claim that the machine is working as designed. Technicians gather a random sample of fill amounts and find that the mean of the sample is 7.6 ounces and that the standard deviation is 0.5 ounces. Based on this information, complete the parts below. (a) What are the null hypothesis H. and the alternative hypothesis H, that should be used for the test? Ho :0 O
Is the mean the measure of central tendency that makes the sum of squared deviations around it minimal?
At a local food processing plant, it used to take an average of 90 minutes for new workers to learn a food processing job. Recently the company installed a new food processing machine. The supervisor at the company wants to find if the mean time taken by new workers to learn the food processing procedure on this new machine is different from 90 minutes. A sample of 20 workers showed that it took, on average, 85 minutes for them to learn the food processing procedure on the new machine. It is known that the learning times for all new workers are normally distributed with a population standard deviation of 7 minutes. Use a significance level of 0.01 to test the claim that the mean time is different from 90 minutes. What is the decision? A) Reject Ho because the test statistic is in the critical region and the p-value is greater than the significance level. B) Reject Ho because the test statistic is not in the critical region and the p-value is greater than the significance level.…
At a local food processing plant, it used to take an average of 90 minutes for new workers to learn a food processing job. Recently the company installed a new food processing machine. The supervisor at the company wants to find if the mean time taken by new workers to learn the food processing procedure on this new machine is different from 90 minutes. A sample of 20 workers showed that it took, on average, 85 minutes for them to learn the food processing procedure on the new machine. It is known that the learning times for all new workers are normally distributed with a population standard deviation of 7 minutes. Use a significance level of 0.01 to test the claim that the mean time is different from 90 minutes. What is the test statistic? A) -7.01 B) -2.539 C) -3.19 D) -2.528 E) -1.96

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Find out mean diviation and its co-efficient (For mean) from the following information: Marks No. of students 0-5 4 5-10 10-15 10 15-20 12 20-25 8 25-30 15 30-35 12 35-40 15 40-45 12 45-50