# MAT201 MOD 4 Case 4 Sampling, Hypothesis Testing, and Regression 02 December 2018.docx

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Sampling, Hypothesis Testing, and Regression Page 1Running head: Sampling, Hypothesis Testing, and RegressionTrident UniversityDawn M. FrancisSampling, Hypothesis Testing, and RegressionMAT201 Basic StatisticsDr. Gregory Dlabach02 December 2018
Sampling, Hypothesis Testing, and Regression Page 21.Choose one design method from the list below. Using your example, make a list of 2 or 3 advantages and 2 or 3 disadvantages for using the method. (2 pts)
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 in a city. They select every 25th person from the list until a sample of 100 is obtained. They then call these 100 peopleto 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)
Sampling, Hypothesis Testing, and Regression Page 3