# Test 2 2009 - Test 2B Math 1P98 Nov 13 2009 Name .Box...

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Test 2B Math 1P98 Nov 13 2009 Name ……………………………………………. .Box number …………………. Use at least 3 significant digits for final answers. A calculator with only 2 lines of display is allowed ( no graphing calculators and no calculators with a List function are allowed), and a handwritten half piece of paper. Diagrams must include calculated value of the test statistic, shading and P value. Good Luck! ………………………………………………………………………………………… 1 .a. [10 marks] An advertiser in a free weekly newspaper wishes to know the proportion of people who toss the paper in the recycling box without reading it. They hope it is less than 30%, or they will withdraw their ad. A sample of 150 houses resulted in 40 people tossing it without reading it. At the 5% significance level does this show a citywide proportion of less than 30%? H 0 :………………. . H 1 :………………. . Sentence for alternate hypothesis: Diagram Calculation of test statistic P value Conclusion We ( reject / do not reject) H 0 . ( circle one) Therefore at 5% significance level : b. [4 marks] Using the above data as a preliminary estimate, how many houses would need to be surveyed to be 98% sure of being within 4% of the true proportion?

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2.a. [10 marks] Doing crossword puzzles has been shown to keep the aging
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## This note was uploaded on 11/04/2011 for the course MATH Math 1P98 taught by Professor D.miners during the Fall '11 term at Brock University, Canada.

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Test 2 2009 - Test 2B Math 1P98 Nov 13 2009 Name .Box...

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