Week 4 Statistics Exercise Questions

Sixty-four assimilators in an introductory college economics class were asked how more credits they had gain in college, and how certain they were about their prime(a) of major. seek gesture: At ? = .01, is the grad of certainty free-living of credits earned? Credits Earned Very shot Somewhat Certain Very Certain Row come up 09 12 8 3 23 1059 8 4 10 22 60 or much 1 7 11 19 gap Total 21 19 24 64 Ho: certainty and credits earned argon independent Ha: certainty and credits earned argon 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 localisation principle. explore question: At ? = .05, does vehicle type vary by stroll 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 8 4 transport 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 aims of cockpit encumbrance in an aircraft fire damage the hearing of pilots who are exposed to this hazard for many hours.

A Boeing 727 co-pilot collected 61 hurly burly observations using a handheld sound meter. Noise take is defined as Low (under 88 decibels), Medium (88 to 91 decibels), or High (92 decibels or more). There are one-third shoot phases (Climb, Cruise, Descent). inquiry question: At ? = .05, is the cockpit noise aim independent of escape pha se? Ho: noise level independent of pass! age phase Ha: noise level dependent on flight phase ANOVA p-value = 0.61 proceed to reject Ho. Can people really signalise their favored brand of cola? Volunteers tasted Coca- dope Classic, Pepsi, Diet Coke, and Diet Pepsi, with the results shown below. Research question: Correct? Regular sens Diet Cola Row...If you want to get a full essay, order it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: How it works.