Math Placement Exam B MAT 002 Discussion Forum Unit 2 PDF

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Math Placement Exam B MAT 002 Discussion Forum Unit 2...

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University of Phoenix Course: Math Placement Exam B MAT 002 Discussion Assignment 2 03/12/2021

The example that I will mention and want to study is the daily profits of a sample of 100 libraries or bookstores in a particular country. If I find two couple outliers in our sample of 100 libraries, I will try to discover the reason for their appearance. It is possible that this happened because of, for example, a typo, or that the store has already achieved these high profits, and this thing can be verified by estimating the total sales or profits that the store got. Before I decide to remove these values or replace them with the average daily profit, the z-score can be used for the ability to calculate how far away the expected standard deviation is. If the z score was high, 3 standard deviations away from the mean, we can guess that there was an error during data collection and entry. If the two values are two times greater than the next highest value, we must know if the value is greater than 100. If it is greater than 100, there may be a typo in the sales or data entry. Or, we can use a focus graph that shows the focus of the da References Yakir, B. (2011). Introduction to statistical thinking (with R, without calculus)....