Answered: The minimum time taken for a data…

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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Question

The minimum time taken for a data collection operator to fill up an electronic form is 7 minutes. Records have shown that the time taken is normally distributed with a mean of 8 minutes and a standard deviation of 2.5 minutes. Assume that the time taken to fill up the forms is independent. i. Determine the appropriate distribution of the average time taken to fill up TEN (10) randomly electronic forms. ii. Find the probability that the average time taken to fill up the TEN (10) forms meets the requirement of minimum time. iii. Evaluate the minimum time required such that the probability of sample mean meeting this requirement is 98%

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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