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SE- Marital Status Not Married 97681 Not Married 96727 Not Married 95432 Not Married 96928 Not Married 94929 Not Married 95744 Not Married 95366 Not...
Given the information below and table attached, fill out the bullets labeled as table 3 for the water cost variable.
- Task : Select Two Sample Hypothesis Test. Using the water expenditure variable (with the Marital Status 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 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)
Hypothesis Testing: Using the expenditure variable Water (using Marital Status 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:
Info needed for answer:
Variable: Water
N= 30
Mean= $626.93
Sample Standard Deviation= 100.89
Variable: Marital Status
N= 30 Mode= Married/Not Married (15 each)
The water expenditure for the entire sample has a positive skew with 53% of the sample spending less than $570 on water. All not married individual's households spend less than $560 on water. 93% of the married households spend more than $580 on water.
Mean was used for the measure of central tendency because it shows the average of the water expenditure per household and the variable is quantitative. Sample standard deviation was used because the variable is quantitative and is a sample from a larger population, so it would best show the measure of dispersion.
- Attachment 1
- Attachment 2
