Purpose:

STAT200 Introduction to Statistics Assignment #3: Inferential Statistics Analysis and Writeup

The purpose of this assignment is to develop and carry out an inferential statistics analysis plan and write up the findings. There are two main parts to this assignment:

• Part A: Inferential Statistics Data Plan and Analysis
• Part B: Write up of Results
• Part A: Prepare Data Plan, Analyze Data, and Complete Part A of the Assignment #3 Template
• Task 1: Select Variables.Review the variables you used for assignments #1 and #2. Select your
• qualitative socioeconomic variable as your grouping variable and the two expenditure variables from the variables used in these previous assignments. Fill inTable 1: Variables Selected for Analysiswith name, description, and type of variable (i.e., qualitative or quantitative).
• Task 2: Select and Run a One Sample Confidence Interval Analysis.For one expenditure variable, select and run the appropriate method for estimating a parameter, based on a statistic (i.e., confidence interval method). CompleteTable 2: Confidence Interval Information and Results, which follows the format outlined by Kozak and the course's problem-solving approach, including:
• Random variable stated in words
• Confidence interval method, including rationale and assumptions
• Method used for analyzing data (i.e., web applets, Excel, TI calculator, etc.).
• Results obtained
• Interpretation
• Task 3: Select Two Sample Hypothesis Test.Using the second expenditure variable (with the socioeconomic variable as the grouping variable), select and run the appropriate method for making decisions about two parameters relative to observed statistics (i.e., two sample