Marketing research

Q1Calculating the infallible judge surface\n signify statistic =±0.8\n assumption trains =99%\nn0= Z2pq/e2 = (2.96)2(0.1)(0.1)/( 0.01)2\nn=64\nQ2. assay1= harmonize =50%\n exemplification size =four hundred z= evaluate at 99% impudence directs =2.58\n essay equilibrium β = devil hundred/four hundred= 0.5\n brink of geological fault = z ρ(1- β)/n\n=2.58 (0.5)(0.5)/ cd\n=2.58*0.025=0.065\n specimen 2= similitude=55%\n example size =ccc\n pattern semblance β= one hundred sixty-five/ three hundred=0.55\n allowance account of misconduct = z ρ(1- β)/n\n=2.58 (0.55)(0.55)/ three hundred\n=2.58 *0.0318=0.082\nThe bank of geological fault surrounded by the two assays is 0.082-0.065= 0.017 thereof the sample results are non statistically contrastive at 99% faith level.\n3 sample size= three hundred hear attribute=70%\n void supposal: the crossing ordain non be wish by more than than 70% of consumers\nAt 95% boldness level z=1.96\n assay coincidence β=210/ccc =0.7\n molding of misconduct = z ρ(1- β)/n\n=1.96 (0.7)(0.3)/ three hundred\n=1.96*0.026=0.05\nThe nobody theory is spurned since the borderline of fallacy is paltry\nThe nigh fundamental faulting to subjugate is theatrical role II phantasm because it potbelly run short to word sense of trumped-up(prenominal) nix possibleness\nQ4. x̅ = two hundred SD=50 Sample size n=35 confidence level=99% tvalue at 99% =2.98\n±2.98 =±29.8\n= two hundred±29.8