Please review the second assignment and complete the third. It is a continuation of the second...

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Please review the second assignment and complete the third. It is a continuation of the second assignment. A copy of the second assignment and the instructions for third assignment and the template have been attached.STAT200: Assignment #3 - Inferential Statistics Analysis  and Writeup Page 1 of 4 Assignment #3: Inferential Statistics Analysis and Writeup Identifying Information Student (Full Name): Class: Instructor: Date: Part A: Inferential Statistics Data Analysis Plan and Computation Introduction: Variables Selected:  Table 1: Variables Selected for Analysis Variable Name in the Data Set Variable Type Description  Qualitative or Quantitative Variable 1: Socioeconomic Variable 2: Expenditure Variable 3: Expenditure Data Analysis: 1.  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) and complete the following table (Note: Format follows Kozak outline): Table 2: Confidence Interval Information and Results Name of Variable: State the Random Variable and Parameter in Words: Confidence interval method including confidence level and rationale for using it: State and check the assumptions for confidence interval: Method Used to Analyze Data: Find the sample statistic and the confidence interval: Statistical Interpretation:  2. Hypothesis Testing: Using the second expenditure variable (with socioeconomic variable as the grouping variable for making two groups), select and run the appropriate method for making decisions about two  parameters relative to observed statistics (i.e., two sample hypothesis testing method) and complete the following table (Note: Format follows Kozak outline): Table 3: Two Sample Hypothesis Test Analysis Research Question: Two Sample Hypothesis Test that Will Be Used and Rationale for Using It: State the Random Variable and Parameters in Words: State Null and Alternative Hypotheses and Level of Significance: Method Used to Analyze Data: Find the sample statistic, test statistic, and p-value: Conclusion Regarding Whether or Not to Reject the Null Hypothesis: Part B: Results Write Up Confidence Interval Analysis: Two Sample Hypothesis Test Analysis: Discussion:      STAT200: Assignment #3 - Inferential Statistics Analysis  and Writeup  -  Instructions  Page 1 of 5  STAT200 Introduction to Statistics  Assignment #3: Inferential Statistics Analysis and Writeup Purpose:  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 in Table 1: Variables Selected for  Analysis with 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). Complete Table 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 STAT200: Assignment #3 - Inferential Statistics Analysis  and Writeup  -  Instructions  Page 2 of 5  hypothesis test method). Complete Table 3: Two Sample Hypothesis Test Analysis, which  follows the format outlined by Kozak and the course’s problem-solving approach, including:   ○ Hypotheses (null and alternative).   ○ Two sample hypothesis testing method, including rationale and assumptions  ○ Method used for analyzing data (i.e., web applets, Excel, TI calculator, etc.).   ○ Results obtained.  ○ Interpretation (i.e., Reject the null hypothesis OR Fail to reject null hypothesis) Step 2: Write Up Results and Complete Part B of the Assignment #3 Template  For this 1 to 2 page section, refer to the inferential statistics data plan and computations done for Part A  of this assignment. Address the following area:  ➢ Introduction. Based on the scenario you submitted for the second assignment, provide a brief  description of scenario, including the variables that were used in this analysis. Include a  completed “Table 1: Variables Selected for Analysis to show the variables you selected for  analysis.  ➢ Data Set Description and Method Used for Analysis. Briefly describe the data set, using  information provided with data set and write up in Assignment #2. Also describe what  method(s) (i.e., free web applets, Excel, TI Calculator) you used to analyze the data.  ➢ Results. In this section, you will report the results of your inferential statistics data analysis. For the Confidence Interval Analysis, write one paragraph that includes:  o Statistical method used, including rationale and whether assumptions were met.  o Statistical Interpretation. The statistical interpretation is that the confidence interval  has a probability (1−α, where α is the complement of the confidence level) of containing  the population parameter.  o Real World Interpretation.  Explain the results in everyday language. Recommend  reviewing the text and information from the classroom for examples on how to report  results in everyday language. STAT200: Assignment #3 - Inferential Statistics Analysis  and Writeup  -  Instructions  Page 3 of 5    For the Two Sample Hypothesis Test Analysis, write one paragraph that includes:  o Hypotheses that were assessed. See below table for example format:  Examples Format for Writing Null and Alternative Hypotheses, in Words  Null Hypothesis: There is no significant difference in [insert variable name]  between [insert group 1 name] and [insert group 2 name] households.  Alternative Hypothesis:   ➢ For two-tailed (≠): There is a significant difference in [insert variable  name] between [insert group 1 name] and [insert group 2 name]  households.  ➢ For one-tailed (>): [Insert group 1 name] has statistically significantly  higher [insert variable name] than [insert group 2 name].  ➢ For one-tailed (

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STAT200: Assignment #3 - Inferential Statistics Analysis  and Writeup
Page 1 of 4
Assignment #3: Inferential Statistics Analysis and Writeup
Identifying Information
Student (Full Name):
Class:
Instructor:
Date:
Part A: Inferential Statistics Data Analysis Plan and Computation
Introduction:
Variables Selected: 
Table 1: Variables Selected for Analysis
Variable Name in the Data Set
Variable Type
Description 
Qualitative or Quantitative
Variable 1:
Socioeconomic
Married or not married
Qualitative
Variable 2:
Expenditure
Amount in US dollars
Quantitative
Variable 3:
Expenditure
Amount in US dollars
Quantitative
Data Analysis:
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) and complete the following table (Note: Format follows Kozak outline):
(Refer excel sheet attached for calculations.)
Table 2: Confidence Interval Information and Results
Name of Variable:   SE Income
State the Random Variable and Parameter in Words   Mu (population mean)
Confidence interval method including confidence level and rationale for using it: 
95% confidence interval  = (97570, 100966.10). We want to find out the range of sample mean drawn at random for large sample sizes with 95% confidence._
State and check the assumptions for confidence interval:
Samples are drawn at random.
Each data entry is independent of the other.
The sample size is atleast 10% of the population.
Sample size is sufficiently large atleast 30.
All have been met.
Method Used to Analyze Data: Descriptive statistics of finding out sample mean, sample std deviation.  
Margin of error = t critical for df 29 * Std error = t critical value for df 29* sample std deviation /sqrt 30
Confidence interval = Mean ±Margin of error
Find the sample statistic and the confidence interval:
Sample statistic mean = 47.067 and
Confidence interval 95% (43.445, 50.688).
Statistical Interpretation:

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