2.1: Ordinal variableFor your ordinal variable:a) provide an ordered table containing the frequency,...

Question

2.1: Ordinal variableFor your ordinal variable:a) provide an ordered table containing the frequency, relative frequency, cumulative frequency, and totals, b) generate a pie chart and an ordered bar chart, and c) discuss the distribution of the variable and whether the order of the categories reveals something about the trend.Section 3: Multivariate descriptive statistics and visualizations	You may want to review group projects to ensure you complete the expected thorough presentation of each task.3.1: Bivariate Analysis of Two Qualitative VariablesProvide the following: a) a contingency table containing the frequency, relative frequency, row percent, and column percent of the groups b) a side by side bar chart, c) a 100% stacked bar chart of row percent, d) a response to the statistical question that uses evidence from the analysis as support.3.2: Bivariate Analysis of a Quantitative Variable and a Qualitative VariableProvide the following: a) a table containing the descriptive statistics for each group, b) a side by side box-whiskers plot, c) the 95% confidence interval for the mean of each group and the interpretation of each CI in context, and e)a response to the statistical question that uses evidence from the analysis as support.3.3: Bivariate Analysis of Two Continuous VariablesProvide: a) a seed and draw an SRS where the sample size is equal to 10% of your data rows (round up if you get a decimal), b)a scatter plot of the sample with least squares regression line overlaid, c) a contextual interpretation of the correlation and of the slope, d) one prediction for the response variable using a value of the explanatory variable of your choosing and interpret the prediction in the context of the relationship, and e)a response to the statistical question that uses evidence from the analysis as support.

Suraj · Accepted Answer

Solution 2.1:
The ordinal variable in our data set is year variable. That is the ordinal variable is that which has values in order. In this variable, year number is ordered.
a)
The frequency table is given as follows:
b)
The pie chart and ordered bar chart are given as follows:
c)
From the above, bar plot, the distribution of the variable year is uniform. That is the variable is uniformly distributed. There is no trend seen from the categories.
Solution 3.1:
Analysis of two qualitative variables: The two qualitative variables chosen from the data are marital status and the Race-ethnicity.
a)
The contingency table for these two qualitative variables is given as follows:
	
	 Race.Ethnicity
	
	Marrital.Status 
	Black 
	Hispanic 
	Non-Hispanic White 
	White
	Row total
	      Married    
	18
	18
	17
	21
	74
	      Unmarried    
	18
	18
	17
	21
	74
	Column Total
	36
	36
	34
	42
	148
The relative frequency table is given as follows:
	
	 Race.Ethnicity
	Marrital.Status 
	Black 
	Hispanic 
	Non-Hispanic White 
	White
	Row total
	      Married    
	0.121622
	0.121621622
	0.114864865
	0.141892
	0.5
	      Unmarried    
	0.121622
	0.121621622
	0.114864865
	0.141892
	0.5
	Column Total
	0.243243
	0.243243243
	0.22972973
	0.283784
	1
b)
The side by side bar plots are given as follows:
c)
The stacked bar plot is given as follows:
d)
Statistic Question: Since, these are two qualitative variables. Thus, we can apply chi-square independence test. To check that whether there is any association between marital status and race-ethnicity.
The contingency table is given as follows:

2.1: Ordinal variable For your ordinal variable:a) provide an ordered table containing the frequency, relative frequency, cumulative frequency, and totals, b) generate a pie chart and an ordered bar...

2.1: Ordinal variable

Section 3: Multivariate descriptive statistics and visualizations

3.1: Bivariate Analysis of Two Qualitative Variables

3.2: Bivariate Analysis of a Quantitative Variable and a Qualitative Variable

3.3: Bivariate Analysis of Two Continuous Variables

Answer To: 2.1: Ordinal variable For your ordinal variable:a) provide an ordered table containing the...

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