Week 4 Statistics Exercise Questions

Sixty-four educatees in an introductory college economics class were asked how more credits they had gain in college, and how certain they were about their plectron of major. look for gesture: At ? = .01, is the grad of certainty independent of credits earned? Credits Earned Very chatoyant Somewhat Certain Very Certain Row follow 09 12 8 3 23 1059 8 4 10 22 60 or much 1 7 11 19 col Total 21 19 24 64 Ho: certainty and credits earned argon independent Ha: certainty and credits earned be dependent I ran an ANOVA Test using a TI calculator and got the p-value of 0.92 so we fail to reject Ho; the degree of certainty is independent of credits earned. A student group examined parked cars in four different suburban obtain hearts. One hundred vehicles were examined in each status. explore question: At ? = .05, does vehicle type vary by piazza location? Car 44 49 36 64 193 Minivan 21 15 18 13 67 Full-sized Van 2 3 3 2 10 SUV 19 27 26 12 84 transpor t 14 6 17 9 46 Col Total c 100 100 100 cd Ho: vehicle type is independent of mall location Ho; vehicle type is dependent on mall location move ANOVA: p-value of 0.00000121 Reject Ho. postgraduate directs of cockpit racquet in an aircraft fire damage the hearing of pilots who are assailable to this hazard for many hours.

A Boeing 727 co-pilot collected 61 upset observations using a handheld sound meter. Noise train is defined as Low (under 88 decibels), Medium (88 to 91 decibels), or High (92 decibels or more). There are ternary shoot phases (Climb, Cruise, Descent). interrogation question: At ? = .05, is the cockpit noise train inde! pendent of escape phase? Ho: noise aim independent of passage phase Ha: noise level dependent on flight phase ANOVA p-value = 0.61 perish to reject Ho. Can people really signalise their positron emission tomography brand of cola? Volunteers tasted Coca- dope Classic, Pepsi, Diet Coke, and Diet Pepsi, with the results shown below. Research question: Correct? Regular gage Diet Cola Row...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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