Question 1

Refer to the Cell Phone survey dataset in Excel, it consists of items such as gender, type of cell phone, usage, carrier and etc. Market research wanted to investigate whether gender and the type of cell phone are dependent.

1. Assist the researcher to identify the appropriate analysis to be used
2. Construct null and alternative hypotheses for the above analysis
3. Based on a) and b), analyze the hypothesis, make decisions,s and draw conclusions using the critical value approach and p-value approach.

Question 2

The Coordinator Programme of Business Economics wanted to investigate the improvement of students’ grades in the final exam for a subject after attending Score A courses. Using the Student’s Grades data in an Excel file apply critical value and p-value approaches to

1. State the suitable procedure for hypothesis testing
2. Construct hypothesis testing for these analyses
3. Analysis of the hypothesis, making the decision, and stating the conclusion