STAT 200 Week 7 - Assignment #3

Assignment #3 – Inferential Statistics Analysis and Writeup

Dwight Wallace

Class: STAT 200 Spring

Instructor:

Date: May 1, 2021

Part A – Inferential Statistics Data Plan Analysis

Introduction: I am 35 years old, married, have three children, and have a bachelors’ degree in business management and have a household income of $79,700, $17,600 in housing expenses, and $1900 in electricity expenses. My focus is determining how marital status affects both housing and electricity expenses.

Table 1 – Variables Used for the Analysis

Data Set Variables	Variable type	Description	Quantitative or Qualitative
Variable 1 – Marital status	Socioeconomics	Married head of household	Qualitative
Variable 2 – Electricity	Expenses	Annual electricity expenses	Quantitative
Variable 2 - Housing	Expenses	Annual housing expenses	Quantitative

Data Analysis

Table 2: Confidence Interval Information and Results

Variable - Housing

X = the annual expenses for housing µ = the means of housing expenses annually

Excel is used

State and check the assumptions for confidence level and rationale for using it: a)

Confidence Interval:

Statistical Interpretation:

Table 3

Part B: Results Write Up

Two Sample Hypothesis Test Analysis:

Discussion

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