( Illowsky Chapter 1 #72, page 52) 72. A study was done to determine the age, number of times per week, and the duration (amount of time) of residents using

( Illowsky Chapter 1 #72, page 52) 72. A study was done to determine the age, number of times per week, and the duration (amount of time) of residents using a local park in San Jose. The first house in the neighborhood around the park was selected randomly and then every eighth house in the neighborhood around the park was interviewed. The sampling method was: a. simple random b. systematic c. stratified d. cluste 3. If you are told only that you scored in the 80th percentile, do you know from that description exactly how it was calculated? Explain. 10. For the numbers 1, 2, 4, 16, compute the following: ΣX ΣX2 (ΣX)2 17. (AT) is the independent variable of this experiment? How many levels does it have? 18. (AT) is the dependent variable? On what scale (nominal, ordinal, interval, ratio) was it measured? Illowsky Use the following information to answer the next three exercises: A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students are absent from class during a quarter. 50. is the population she is interested in? a. all Lake Tahoe Community College students b. all Lake Tahoe Community College English students c. all Lake Tahoe Community College students in her classes d. all Lake Tahoe Community College math students Purchase the answer to view it

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