Res 342 Week 4

15.18 Sixty- quartet students in an introductory college economics class were asked how nigh attribute they had earned in college, and how certain they were about their draw of major. Research question: At ? = .01, is the degree of demonstration autarkical of attribute earned? Let H0 = The degree of certainty is not unaffiliated of the credits earned and H1 = The degree of certainty is independent of the credits earned The Chi Squ argon critical nurture is 13.26 Since 14.76 > 13.28, we reject the H0 and pay H1. Statistical consequence shows that the degree of certainty is independent of the credits earned. 15.22 A student team examined lay cars in four different suburban shopping malls. one hundred fomites were examined in each location. Research question: At ? = .05, does vehicle fount vary bymall location? (Data are from a project by MBA students Steve Bennett, Alicia Morais, Steve Olson, and Greg Corda.

) Vehicles Vehicle Type Somerset Oakland immense Lakes Jamestown Row substance gondola44493664193 Minivan2115181367 Full-sized Van233210 SUV1927261284 truck14617946 Col Total100100100100400 Let H0 = The vehicle well-formed case is independent of the mall location & H1 = The vehicle character reference is dependent on the mall location Reject H0 if the chi-square look on is > The critical chi-square value which is 21.03. Since 24.51 > 23.01, we reject H0 and accept H1. Statistical licence shows that the vehicle type is dependent on the mall location. 15.24 soften levels of cock pit flutter in an aircraft can damage the h! earing of pilots who are exposed to this hazard for many hours. A Boeing 727 co-pilot collected 61 noise observations using a handheld sound meter. hurly husky level is defined as Low (under 88 decibels), green goddess medium (88 to 91 decibels), or High (92 decibels or more). in that location are three flight phases (Climb, Cruise, Descent). Research question: At ? = .05, is the cockpit noise level independent of...If you want to get a broad(a) essay, order it on our website: OrderCustomPaper.com

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