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Research Questions

by | May 18, 2021 | Statistics

Respond to the following short answer questions from the Morgan, Leech, Gloeckner, & Barrett textbook: D1.1 Variables. What kind of independent variable (active or attribute) is necessary to infer cause? Can one always infer cause from this type of independent...

Summarize the data for a company.

by | May 18, 2021 | Statistics

For this assignment, you need to submit a single Excel workbook (80% of the case study grade) showing all work for Steps 1-5 and a Word document (20% of the case study grade) of your summary report that addresses all parts of Step 6 (to tell a story with the data and...

Advantages and disadvantages of ANOVA

by | May 18, 2021 | Statistics

It is open question there is no right answers 1) What do you think is the importance of ANOVA in linear regression? 2) What do you think are the advantages and disadvantages of ANOVA in the context of linear regression? 3) Should we always be worried about outliers in...

Pharmaceutical company

by | May 14, 2021 | Statistics

A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of time they last is approximately normal. Researchers in a hospital used the drug on a random sample of 9 patients. The effective period of the tranquilizer for each...

Data Collection and Data Entry

by | May 12, 2021 | Statistics

The statistics project gives you a chance to apply many of the statistical methods learned in this course to a problem that interests you. This project will also familiarize you with how to use Excel to display your statistical analysis. The project is 15% of your...