# Essay on Math 221 Complete Course (Dqs - Labs - Final) Devry

2177 Words Dec 28th, 2015 9 Pages
MATH 221 Complete Course (Dqs - Labs - Final) Devry

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Discussions
If you were given a large data set such as the sales over the last year of our top 1,000 customers, what might you be able to do with this data? What might be the benefits of describing the data?
Week 2

Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information that you
Only consider one of these changes at a time. Explain your answer with words and by referencing the formula.
Week 7

How is the rejection region defined and how is that related to the z-score and the p value? When do you reject or fail to reject the null hypothesis? Why do you think statisticians are asked to complete hypothesis testing? Can you think of examples in courts, in medicine, or in your area?
Statistics – Lab Week 2 Name:_______________________
Math221

Statistical Concepts:
• Using Minitab
• Graphics
• Shapes of Distributions
• Descriptive Statistics
• Empirical Rule

Data in Minitab Ø Minitab is a powerful, yet user-friendly, data analysis software package. You can launch Minitab by finding the icon and double clicking on it. After a moment you will see two windows, the Session Window in the top half of the screen and the Worksheet or Data Window in the bottom half. Ø Data have already been formatted and entered into a Minitab worksheet. Go to the eCollege Doc sharing site to download this data file. The names of each variable from the survey are in the first row of the Worksheet. This row has a background color of gray to identify it as the variable names. All other rows of the Minitab Worksheet represent a certain students’ answers to the survey questions. Therefore, the rows are called observations and