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I need to make recommendations as to the type of s...




I need to make recommendations as to the type of sample to be used, the method of selecting the sample, and the sample size of the following 3 situations - can you please help me? 1. The manager of the appliance department of a local full-line department store chain is planning a major one-day nonprice promotion of food processors, supported by heavy advertising in the two local newspapers. The manager asks you to recommend a method of sampling customers coming into the department. The purpose is to assess the extent to which customers were drawn by the special advertisement, and the extent to which the advertisement in?uenced their intentions to buy. A pretest of the questionnaire indicates that it will take about 3 minutes to administer. The manager is especially interested in learning whether there are signi?cant differences in the response to the questionnaire among (a) males versus females, (b) gift buyers versus other buyers, and (c) age groups. 2. A major airline wants to run a preliminary study on the attitudes of university students toward air travel. The company?s research director already has submitted an interview plan and has estimated that, on average, each interview will require between an hour and an hour-and-a-half to administer. It is estimated that the cost of interviewing and interpreting the interview will be roughly $75.00 per respondent. 3. A small Caribbean island relies heavily on tourist income. There is a need to develop a study so that an estimate can be provided each month as to: a. The number of tourists b. The length of stay c. Their activities d. Their attitudes toward some programs and activities The plan is to conduct a short interview with each respondent and to leave with them a short questionnaire to be completed and mailed after returning home. Several sampling plans are being considered. One is to generate a random sample of hotel rooms and to interview each occupant. Another involves sampling every nth person that passes a predetermined point in the city. Still another is to sample departing planes and ships. About six planes and three ships depart each day. Design a sampling plan so that each month 500 tourists are obtained in the sample.


Paper#10660 | Written in 18-Jul-2015

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