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1.0/ 1.0 PointsQuestion 1 of 20A Driver’s Ed program is curious if the time of year has an impact on number of car accidents in theU.S. They assume that weather may have a significant impact on the ability of drivers to control their vehicles. Theytake a random sample of 150 car accidents and record the season each occurred in. They found that 27 occurred inthe Spring, 39 in the Summer, 31 in the Fall, and 53 in the Winter.Can it be concluded at the 0.05 level of significance that car accidents are not equally distributed throughout theyear?Week 8 Knowledge Check Homework Practice QuestionsReturn to Assessment ListPart 1 of 4 - Chi-Square Test for Homogeneity8.0/ 8.0 PointsA. yes because the p-value = 0.0145B. no, because the p-value = 0.0145C. yes, because the p-value = 0.0291D. no, because the p-value = 0.0291Answer Key: Feedback:SpringSummerFallWinterObservedCounts27393153ExpectedCounts150*.25 =37.5150*.25 =37.5150*.25 =37.5150*.25=37.5
A
You can use Excel to find the p-valueMATH302 I008 Win 20Tests & QuizzesTests & QuizzesYou can access the new Success Center via the left hand navigation in your classrooms. This tool is updatedregularly and provides access to hundreds of relevant resources geared towards your academic and professionalgoals. Check it out!
1.0/ 1.0 PointsA large department store is curious about what sections of the store make the most sales. The managerhas data from ten years prior that show 30% of sales come from Clothing, 25% Home Appliances, 18% Housewares,13% Cosmetics, 12% Jewelry, and 2% Other.In a random sample of 550 current sales, 188 came from Clothing, 153 Home Appliances, 83 Housewares,54 Cosmetics, 61 Jewelry, and 11 Other. At α=0.10, can the manager conclude that the distribution of sales among thedepartments has changed?1.0/ 1.0 PointsAn urban economist is curious if the distribution in where Oregon residents live is different today than itwas in 1990. She observes that today there are approximately 3,109 thousand residents in NW Oregon,902 thousand residents in SW Oregon, 244 thousand in Central Oregon, and 102 thousand in Eastern Oregon. Sheknows 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.=CHISQ.TEST(Highlight Observed, Highlight Expected)p-value = 0.0145 < .05, Reject Ho, Yes, this is significant
Question 2 of 20A large department store is curious about what sections of the store make the most sales. The managerhas data from ten years prior that show 30% of sales come from Clothing, 25% Home Appliances, 18% Housewares,13% Cosmetics, 12% Jewelry, and 2% Other.In a random sample of 550 current sales, 188 came from Clothing, 153 Home Appliances, 83 Housewares,54 Cosmetics, 61 Jewelry, and 11 Other. At α=0.10, can the manager conclude that the distribution of sales among thedepartments has changed?
C
Question 3 of 20An urban economist is curious if the distribution in where Oregon residents live is different today than itwas in 1990. She observes that today there are approximately 3,109 thousand residents in NW Oregon,902 thousand residents in SW Oregon, 244 thousand in Central Oregon, and 102 thousand in Eastern Oregon. Sheknows 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.

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