HW 1 Solutions

HW 1 Solutions - are made. If the calls are made in the...

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BA 240 W. Li Homework 1 Solution 1 Homework 1 Solution Problem 1.15: a) The population of interest is all citizens of the United States. b) The variable of interest is the view of each citizen as to whether the United States was justified in invading Iraq in 2003 or not. It is qualitative. c) The sample is the 2000 individuals selected for the poll. d) The inference of interest is to estimate the proportion of all citizens who believe the United States was justified in invading Iraq in 2003. e) The method of data collection is a survey. f) It is not very likely that the sample will be representative of the population of all citizens of the United States. By selecting phone numbers at random, the sample will be limited to only those people who have telephones. Also, many people share the same phone number, so each person would not have the calls
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Unformatted text preview: are made. If the calls are made in the evening, those people who work in the evening would not be represented. Problem 1.18: a) Qualitative Nominal b) Qualitative Nominal c) Qualitative Ordinal / Nominal d) Qualitative Ordinal / Nominal e) Qualitative Nominal f) Quantitative Ratio g) Quantitative Ratio h) Qualitative Nominal Problem 1.24: BA 240 W. Li Homework 1 Solution 2 Problem 1.27: a) Designed Experiment b) Inferential Statistics c) All possible burn patients Problem 1.32: a) Survey b) The target population is the All American adults. c) The sample was not a random sample. Thus, it may not be representative of all American adults. Many people contacted on the telephone refuse to participate in surveys....
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HW 1 Solutions - are made. If the calls are made in the...

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