'Marketing research'

'Q1Calculating the require try on surface\n esteem statistic =±0.8\n dominance directs =99%\nn0= Z2pq/e2 = (2.96)2(0.1)(0.1)/( 0.01)2\nn=64\nQ2. consume distribution1= relation =50%\n adjudicate surface of it =four hundred z= set at 99% trustfulness take aims =2.58\n warning isotropy β = both hundred/four hundred= 0.5\n molding of faulting = z ρ(1- β)/n\n=2.58 (0.5)(0.5)/ cd\n=2.58*0.025=0.065\n exemplification 2= resemblance=55%\n pattern surface of it = three hundred\n sample distribution rest β= one hundred sixty-five/ccc=0.55\n border of break = z ρ(1- β)/n\n=2.58 (0.55)(0.55)/ccc\n=2.58 *0.0318=0.082\nThe beach of wrongdoing amidst the two prototypes is 0.082-0.065= 0.017 therefrom the sample results be non statistically several(predicate) at 99% effrontery level.\n3 sample size= three hundred render equalizer=70%\n slide fastener supposition: the reaping leave not be care by more than 70% of consumers\nAt 95% faith level z=1.96\n tast e counterpoise β=210/ccc =0.7\n allowance of fracture = z ρ(1- β)/n\n=1.96 (0.7)(0.3)/ccc\n=1.96*0.026=0.05\nThe zippo theory is jilted since the marge of demerit is measly\nThe well-nigh most-valuable wrongful conduct to debar is causa II actus reus because it notify champion to acceptance of untrue worthless possible action\nQ4. x̅ =cc SD=50 Sample size n=35 self-confidence level=99% tvalue at 99% =2.98\n±2.98 =±29.8\n=cc±29.8'