c) A manufacturer collected a sample of 500 light bulbs to conduct a study on the lifespanof that particular type of light bulb. The table summarizes the frequency distribution forthe lifespan.1Numberof BulbsLifetime of Bulbs_(hours)300-3994400-49928500-59997600-699242700-79996800-89927900-9996.Total500Required:i) By calculating the Mean, Median, Mode, Standard Deviation, the First PearsonianMoment Coefficient of Skewness and the Second Pearsonian Moment Coefficient ofSkewness comment on the Skewness of the distribution.ii) Assuming the distribution approximates a Normal Distribution what is the probability thata bulb selected at random would have a lifespan:1. Between 500 and 750 hours.2. Less than 450 hours.3. Greater than 820 hours.

A manufacturer collected a sample of 500 light bulbs to conduct a study on the lifespan of that…

Answered: c) A manufacturer collected a sample of…

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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Plz answer correctly in 20 mints it's very urgent plz
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A team of ten (10) construction workers who are working on a project are classified according to the skill levels, Classes A to D. The table below shows the number of workers in each of the four (4) classes and their respective hourly pay-rate. Pay-rate (Rands/hour) Number of workers Class A 80 Class B 60 Class C 55 Class D 50 4. Calculate the mean hourly pay-rate for the 10 workers. A. R24.50/hour B. R57/hour C. R57.50/hour D. R61.75/hour
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