Answered: -test or t-test. show the result of the…

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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z-test or t-test. show the result of the table in excel.

upvote will be given. (YOU MAY USE EXCEL IN SOLVING THE PROBLEM. DO NOT FORGET TO SCREENSHOT THE RESULTS/table.)

You just implemented a new Ergonomics Intervention Scheme to shorten the time to make your company’s product ABC. Fifteen of your workers, who used the present method were requested to use the proposed method. From your initial analysis, this proposed method will be faster (in minutes) than the present system. Assume that the data are normally distributed, at the 0.05 alpha, is your initial analysis accurate?

EMPLOYEE
1
2345
6
2000-
10
11
12
13
14
15
PRESENT SYSTEM
(in min.)
11
13
14
12
13
14
15
13
16
9
10
13
12
15
13
PRPOSED SYSTEM
(in min.)
10
11
9
12
11
9
10
13
14
12
10
11
10
11
10

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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