# MAT 201 Case 4.odt - Colby Mercil 1 Choose one design...

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Colby Mercil1. Choose one design method from the list below. Using your example, make a list of 2 or3 advantages and 2 or 3 disadvantages for using the method. (2 pts)Simple random samplingAny sampling method where every member of the population is equally likely to be chosen. Systematic samplingA sampling method where elements are chosen from the population according to a fixed pattern from an ordered list. Stratified samplingA sampling method where the population is first partitioned into subgroups based on some parameters. Cluster samplingWhere the population is naturally divided into groups, and a random sample of the groupis selected. All members of the selected group are sampled.2.The name of each student in a class is written on a separate card. The cards are placed in a bag. Three names are picked from the bag. Identify which type of sampling is used and why. (2 pts)
3.A phone company obtains an alphabetical list of names of homeowners ina city. They select every 25th person from the list until a sample of 100 is obtained. They then call these 100 people to advertise their services. Does this sampling plan result in a random sample? What type of sample is it? Explain. (2 pts)
4.The manager of a company wants to investigate job satisfaction among its employees. One morning after a meeting, she talks to all 25 employees who attended. Does this sampling plan result in a random sample? What type of sample is it? Explain. (2 pts)