I4 (Week 4) Individual Assignment: t-test I4: Identify a research problem different from the previous research problems that uses two different sets of the same type of data. Any subject may be chosen. Some examples: Sales from two different months or years. GPA’s of men and women. Number of two different shelf items sold (Coke & Pepsi) by month over a year. Home sales prices in different suburbs cities counties or states. You wish to determine if there is a significant difference between the means of the data sets. Select data that have absolute zero measurements (Ratio data). You may use recorded data or made up data. The n sample size should be at least 10 in each set but not more than 29. Prepare a paper with a table of contents. Describe the research problem research purpose and one research question. Include a definition of the variables you are measuring. List the data. List alpha the null and alternative hypothesis and give a brief back ground. Do MegaStat descriptive statistics on the data and do data analysis describing the data. Do runs plot graphs. Interpret the Goodness of Fit (GOF) p-value to decide if the data is parametric (normal) or nonparametric.
t-test: Open Excel log in both data sets. Go to Add Ins Megastat Hypothesis Tests Compare Two Independent Groups left mouse click highlight Group 1 then Group 2 OK. Conclude. Use the I4 sample as a guide. This paper should be between 900-1200 words. Post as an Individual assignment. Title the document file t-test I4.