Week 4 Statistics Exercise Questions

Sixty-four assimilators in an introductory college economics class were asked how to a greater extent credits they had gain in college, and how certain they were about their weft of major. search gesture: At ? = .01, is the grad of certainty free-living of credits earned? Credits Earned Very unsettled Somewhat Certain Very Certain Row entireness 09 12 8 3 23 1059 8 4 10 22 60 or much 1 7 11 19 spread Total 21 19 24 64 Ho: certainty and credits earned ar independent Ha: certainty and credits earned are 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 perspective. explore question: At ? = .05, does vehicle type vary by substance 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 transport 14 6 17 9 46 Col Total c 100 100 100 four hundred 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 hindrance in an aircraft fire damage the hearing of pilots who are undefendable to this hazard for many hours.

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

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