STATISTICS

Answer the given problem. Analyze what tool should be used.

Boles and Johnson examined the beliefs held by adolescents regarding smoking and weight. Respondents characterized their weight into three categories: underweight, overweight, or appropriate. Smoking status was categorized according to the answer to the question, "Do you currently smoke, meaning one or more cigarettes per day?" The following table shows the results of a telephone study of adolescents in the age group 12 17.

	Smoking	Smoking
	Yes	No
Underweight	17	97
Overweight	25	142
Appropriate	96	816

Do these data provide sufficient evidence to suggest that weight perception and smoking status are related in adolescents? Use a = 0.01.

Follow the steps in solving the problem, namely:

1. Hypothesis ex. H0: = 9.0 H1: 9.0 2. Level of significance ex. = 0.01 3. Test Statistic ex. z = x - 0 / / n 4. Critical Region ex. graph and /2 = +-0.025 5. Computation ex. compute using formula 6. Decision ex. accept H0 since the computed z-value falls in the region of acceptance. 7. Conclusion ex. there is no reason to believe the ...