Answered: 6. Kate, a researcher, used a 5-point…

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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6. Kate, a researcher, used a 5-point Likert scale about the level of satisfaction among students towards the new voting system designed for the SLS Election. After conducting the survey, he wants to know how many percent of her respondents out of 20 is highly satisfied with the new voting system. What graphical presentation is BEST for Kate to construct? a. Scattergram/Scatterplot c. Pie Graph b. Line Graph d. Frequency Distribution Table 7. After their interview, Romeo and Alex did not clearly comprehend one of their respondent’s answers about his opinion towards the new Jollibee short film as a new marketing strategy. What should the two researchers use to recapitulate the respondent’s answer for data analysis? a. Survey Questionnaire c. Interview Schedule b. Observational Notes d. Audio Recorder 8. If you want to find out the central or typical weight of a set of females in kilograms, you are looking for the average of their weights. What measurement are you going to use? a. Mean c. Median b. Mode d. Standard Deviation

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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