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Homework - Allison Heck October 2 2007 Stat 133 Autumn 2007...

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Allison Heck October 2, 2007 Stat 133 Autumn 2007 Homework #1 (10 points) Due Tuesday October 2 (beginning of recitation) Please USE this Word file to write and submit your answers for this homework. Do not write your answers on regular paper. Each problem is worth 1 point, except problem 3, which is worth 2 points. Write your final answers in the blanks below. When asked to explain your answer, use 1-2 sentences ONLY. That is all we will grade. Include computer output where requested. Supermarket shoppers. A sample of 50 consecutive shoppers was taken, and the amount of money spent (in dollars) by each shopper is shown in the data set on page 33. To obtain this data set: use the Carmen link to data sets, and look for Excel, Chapter 1. The name of the data set is Excel data set: ex01_030. 1. What is the variable we are examining here? Choose one: a. The 50 shoppers b. The time each shopper arrived c. The amount of money each shopper spent Answer: C 2. What type of variable are we measuring here? Circle one a. Quantitative (numerical) b. Categorical (qualitative)
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