Question 2A manufacturing company hired a consulting firm to identify quality control issues. The consulting firmfound that 30% of work-related problems occurred on Tuesdays and that 20% occurred in the hour aftera day's lunch. It was also found that 4% of worker-related problems occurred in the hour after Tuesday'slunch.a) Find the probability that a worker-related problem that occurs on Tuesday does not occur in thehour after the day's lunch.b) Given the events "problem occurs on Tuesday" and "problem occurs in the hour after the day'slunch", are they statistically independent? Justify your answer.

Given: P(A) = 0.30 P(B) = 0.20 P(A and B) = 0.04 A is the event problem occurs on Tuesday B is the…

Answered: Question 2 A manufacturing company…

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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A fitness course claims that it can improve an individual's physical ability. To test the effect of a physical fitness course on one's physical ability, the number of sit-ups that a person could do in one minute, both before and after the course, was recorded. Ten individuals are randomly selected to participate in the course. The results are displayed in the following table. Can it be concluded, from the data, that participation in the physical fitness course resulted in significant improvement? Let d=(number of sit-ups that can be done after taking the course)−(number of sit-ups that can be done prior to taking the course)d=(number of sit-ups that can be done after taking the course)−(number of sit-ups that can be done prior to taking the course). Use a significance level of α=0.05 for the test. Assume that the numbers of sit-ups are normally distributed for the population both before and after taking the fitness course. Sit-ups before 42 42 23 32 30 42 25 47 35 38 Sit-ups after…
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