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MATH 40 SP 2011 HMWK SESSION 14

# MATH 40 SP 2011 HMWK SESSION 14 - H Test statistic 29 29...

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MATH 40 SESSION 14: 4/12/11 HOMEWORK ASSIGNMENT: SESSION 14 DUE DATE: 4/19/11 (1) Read the textbook: Section 9.4 (2) Homework problems: (a) 9.55 (b) 9.58 Session Fifteen 4/19/11 Review for final exam. Final exam posted before 11:59 pm FINAL EXAM IS COMPREHENSIVE FROM WEEK 1 Session Sixteen 4/26/11 FINAL EXAM IS DUE TODAY It is a take-home exam. It will be posted in Doc Sharing before 11:59 pm (PT) 4/19/11, and it is due before 11:59 pm (PT) 4/26/11. I will take 20% off your score for each day or portion of a day (even one minute after midnight) that it is late. The exam will consist of 20 multiple-choice questions. You may submit it in any of the following ways: 1) Place in the Dropbox Basket in the course website. 2) Email to me. 3) Fax to me at (415) 442-7049. 4) Hand to me or leave in my mailbox in Suite 4337. Golden Gate University Math 40 – SP ’11 Instructor: Chris Clark 1

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9.55 Sample proportion: 9/17 = .5294 H 0 : π = 0.55 H 1 : 0.55 Decision rule: If Z STAT < – 1.96 or Z STAT > 1.96, reject
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Unformatted text preview: H . Test statistic: ( 29 ( 29 0.5294 0.55 1 0.55 1 0.55 17 STAT p Z n--= =--= -0.1706 Decision: Since Z STAT = -0.1706 is between the two critical bounds, do not reject H . There is not enough evidence that the proportion of females in this position at this medical center is different from what would be expected in the general workforce. 9.58 (a) H : ≤ 0.08 No more than 8% of students at your school are Omnivores H 1 : > 0.08 More than 8% of students at your school are Omnivores (b) Decision rule: If p-value < 0.05, reject H . Test statistic: ( 29 ( 29 200 08 . 1 08 . 08 . 15 . 1--=--= n p Z STAT = 3.6490, p-value = 0.0001316 Decision: Since p-value = 0.0001316 < 0.05, reject H . There is enough evidence to show that the percentage of Omnivores at your school is greater than 8%. Golden Gate University Math 40 – SP ’11 Instructor: Chris Clark 2...
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MATH 40 SP 2011 HMWK SESSION 14 - H Test statistic 29 29...

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