# 4 - Due Friday 11:59 PM EDT Description Current Score 30...

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Due: Friday, September 28, 2007 11:59 PM EDT Current Score: 30 out of 30 Question Score Submission Options Description Homework 4 covers topics in sampling, including selecting a stratified random sample from the US Census Bureau web site. Instructions Homework #4 You are allowed 4 submissions for most problems. For some multiple choice problems you are allowed 2 submissions. For true/false questions you are allowed 1 submission. Due date is 11:59 pm Friday, Sept. 28. 1. 6/6 points Last Response | Show Details All Responses Notes You must choose an SRS of 10 of the 460 retail outlets in New York that sell your company's product. Question 1 . How would you label this population? 1 001 -or- 1 to 460 460 Question 2 . Use this random digits table , starting at line 122 , to choose your sample. Which retail outlets would you select? (list the number labels of the outlets that you select in the order in which you select them from the random number table as you move from left to right; also, proceed continuously from row 122 to 123, that is, use the "1" at the end of row 122 with the first 2 digits of row 123 to form the number 154).

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138 138 159 159 052 052 -or- 52 087 087 -or- 87 359 359 275 275 186 186 369 369 154 154 072 072 -or- 72 2. 7/7 points Last Response | Show Details All Responses Notes Accountants use stratified samples during audits to verify a company's records of such things as accounts receivable. The stratification is based on the dollar amount of the item and often includes 100% sampling of the largest items. One company reports 5000 accounts receivable. Of these, 100 are in amounts over \$50,000; 500 are in amounts between \$1000 and \$50,000; and the remaining 4400 are in amounts under \$1000. Using these groups as strata, you decide to verify all of the largest accounts and to sample 5% of the midsize accounts and 1% of the small accounts. Question 1 . How would you label the two strata from which you will sample? 001 001 -or- 1 to 500 500 for the midsize accounts 0001 0001 -or- 1 to 4400 4400 for the small accounts Question 2 . Use this random digits table , starting at line 115 , to select only the first 5 accounts from each strata. List them below in the order in which they occur in the table. Choose the midsize accounts first. After you choose the five midsize accounts, to choose the small accounts start in row 115 from where you finished choosing the five midsize accounts.
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