# week 8 tests.docx - Question 1 of 20 1.0/ 1.0 Points An...

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Question 1 of 201.0/ 1.0 PointsAn urban economist is curious if the distribution in where Oregon residents live is different todaythan it was in 1990. She observes that today there are approximately 3,109 thousand residents inNW Oregon, 902 thousand residents in SW Oregon, 244 thousand in Central Oregon, and102 thousand in Eastern Oregon. She knows that in 1990 the breakdown was as follows: 72.7%NW Oregon, 20.7% SW Oregon, 4.8% Central Oregon, and 2.8% Eastern Oregon.Can she conclude that the distribution in residence is different today at a 0.05 level ofsignificance?A.yes because the p-value = .0009B.no, because the p-value = .0009C.yes because the p-value = .0172D.no because the p-value = .0172Answer Key:CFeedback:NWOregonSW OregonCentralOregonEasternOregonObservedCounts3109902244102ExpectedCounts4357*.727= 3167.5394357*.207=901.8994357*.048=209.1364357*.028=121.996Use Excel to find the p-value=CHISQ.TEST(Highlight Observed, Highlight Expected)p-value is < .05, Reject Ho. Yes, this is significant.
Question 2 of 201.0/ 1.0 Points
Pamplona, Spain is the home of the festival of San Fermin – The Running of the Bulls. The townis in festival mode for a week and a half every year at the beginning of July. There is a runningjoke in the city, that Pamplona has a baby boom every April – 9 months after San Fermin. To testthis claim, a resident takes a random sample of 300 birthdays from native residents and finds thefollowingobserved counts:January25February25March27April26May21June26July22August27September21October26November28December26At the 0.05 level of significance, can it be concluded that births in Pamplona are not equallydistributed throughout the 12 months of the year?Hypotheses:H0: Births in Pamplona ______ equally distributed throughout the year.H1: Births in Pamplona ______ equally distributed throughout the year.Select the best fit choices that fit in the two blank spaces above.
Question 3 of 20
0.0/ 1.0 PointsStudents at a high school are asked to evaluate their experience in the class at the end of eachschool year. The courses are evaluated on a 1-4 scale – with 4 being the best experiencepossible. In the History Department, the courses typically are evaluated at 10% 1’s, 15% 2’s,34% 3’s, and 41% 4’s.Mr. Goodman sets a goal to outscore these numbers. At the end of the year he takes a randomsample of his evaluations and finds 10 1’s, 13 2’s, 48 3’s, and 52 4’s. At the 0.05 level ofsignificance, can Mr. Goodman claim that his evaluations are significantly different than theHistory Department’s?Use Excel to find the p-value

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Term
Spring
Professor
N/A
Tags
Statistical hypothesis testing, Chi square distribution