please solve these questions which are based on business statistics

This Assignment consists of 4 parts A sociologist theorised that people who watch television frequently are exposed to many commercials, which in turn lead them to buy these goods, resulting in increasing debt. To test this belief, a researcher plans to survey a sample of families across the country. Part 1 [5 marks] Briey explain (a) What type of survey method could the researcher use and why? (b) What sampling method could the researcher use to select his/her sample and why? (0) What are the variables the researcher should consider collecting data for the purpose of the analysis and why? (d) Identify the data type(s) for the variables mentioned in part (c). (e) What kind of issues the researcher may face in this data collection? Suppose the researcher collected data from 400 randomly selected families. For each family, the total debt (in $) and the number of hours the television is turned-on per week (TV hours) were recorded. The data are stored in le TVDEBT.XLS available in the Written Assignment folder. Using this data and EXCEL, answer the questions below. Part 2 [10 Marks] First, the researcher wishes to use the graphical descriptive methods and numerical descriptive mesures to present the data for the two variables. (a) (b) (C) (d) He decides to use 10 classe intervals, such as 0