Objective

This exercise looks at categorical (qualitative) data where we have counts or frequencies of observations associated with levels of one categorical variable in the case of One-Way tables and associated with levels of two categorical variables in the case of Two-Way tables.
We use the Chi-squared distribution to assess the goodness of fit and to test for statistical independence

Using R software perform an analysis using a sample of size 100 as specified in the problems below (1,2,3,and 4) and must do an analysis using the entire dataset

Refer to the attached data(LDS_C10_RESPDIS) in Excel on smoking, alcohol consumption, blood pressure, and respiratory disease among1200 adults.

Please note columns A through E has nominal data of (0, 1) but column C, Drink, has ordinal data of (0, 1, 2).
The variables are as follows:

Sex (A): 1 =male , 0 = Female
Smoking status (B) : 0 = Nonsmoker, 1= Smoker
Drinking level (C): 0= nondrinker, 1= Light to moderate drinker, 2= heavy drinker
Symptoms of respiratory disease (D) : 1 = present; 0 = absent
High blood pressure status (E) : 1 = present; 0 = absent

Problems

1) Select a simple random sample of size 100 from this population and carry out an analysis to see if you can conclude that there is a relationship between smoking status and symptoms of respiratory disease. Let α = 0.05 and determine the p value for your test.

2) Select a simple random sample of size 100 from the population and carry out a
test to see if you can conclude that there is a relationship between drinking status and high blood
pressure status in the population. Let α = 0.05 and determine the p value.

3) Select a simple random sample of size 100 from the population and carry out a test to see if you can conclude that there is a relationship between gender and smoking status in the population. Let α = 0.05 and determine the p value.

4) Select a simple random sample of size 100 from the population and carry out a test to see if you can conclude that there is a relationship between gender and drinking level in the population. Let α = 0.05 and find the p value.

Objective This exercise looks at categorical (qualitative) data...