1. A national survey is carried out to identify the current issues of concern in Malaysia. The people of Malaysia consist of 50% youths below the age of 20 years, 40% adults between the ages of 20-50 years and 10% senior citizens of age more than 50 years. The respondents would be asked to comment national problems that they consider worrying. These include issues such as poverty, drug abuse, unemployment, illegal immigrants and high crime rates.

• What kind of information needs to be collected in this survey?
• State the population in this study.
• State one probability and one non-probability sampling techniques that is suitable for this study.

Probability

Non-probability sampling

• Which data collection method is most suitable for this study

1. The owner of a bakery has decided to open a store and asked for your help in predicting the demand for baked goods in a particular location. You have decided to design a survey to gather this data.

• If the bakery owner is only planning to sell to local residents, what is a possible target population?
• Would you perform a complete census of the population or use statistical sampling procedures? Why?
• Assuming you could acquire an accurate population frame, what method of sampling would you use and how you select your sample?