Midterm_2006_version1_solution

# Midterm_2006_version1_solution - SCHULICH SCHOOL OF...

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OMIS1000 MIDTERM EXAMINATION PART I – MULTIPLE CHOICE QUESTIONS (20 MARKS, 2 marks each) Circle the best answer for each question below. There is only one correct answer. There is no penalty for guessing. 1) A cell phone service provider has 14,000 customers. Recently, the sales department selected a random sample of 400 customer accounts and recorded the number of minutes of long distance time used during the previous billing period. The company analyst used Excel to sort these values in order from high to low. She then assigned the highest value a rank of 1, the next highest value a rank of 2, and so forth. These ranks would be considered to be: a) Ordinal data b) Nominal data c) Time series data d) Interval data 2) a) It shows the general distribution of a quantitative variable. b) The detail of the data is preserved. c) It can be used with nominal data. d) There are no advantages. 3) The chairman of the statistics department in a certain college believes that 60% of the department's graduate assistantships are given to international students. A random sample of 100 graduate assistants is taken. What is the standard error of the sampling distribution of P-bar? a)
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Midterm_2006_version1_solution - SCHULICH SCHOOL OF...

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