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QAB 105 Assignment On Quantitative Analysis for Business

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Added on  2020-04-01

QAB 105 Assignment On Quantitative Analysis for Business

   Added on 2020-04-01

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QAB 105 Quantitative Analysis for BusinessAssessment Task 2Student Id[Pick the date]
QAB 105 Assignment On Quantitative Analysis for Business_1
Question 1 Random sample = 200 Number of retailers sold products below the minimum price = 79(a)A random sample is a population subset where every element has an equal chance orprobability of being selected. A random sample can be selected by ensuring that all theretailers be given a unique number and then 200 numbers can be randomly selected fromthe whole population of numbers through software to avoid any bias. The retailerscorresponding to the number selected would serve as part of the random sample (Hillier,2006).(b)95% confidence limits for the proportion Mean ¿79200=0.395Z value for 95% confidence interval = 1.96Upperlimitof95%confidencelimits=¿¿0.395+(1.96∗√0.395(1−0.395)200)¿0.395+(1.96∗0.0345)¿0.4627Limitlimitof95%confidencelimits¿0.395−(1.96∗√0.395(1−0.395)200)¿0.395−(1.96∗0.0345)¿0.32795% confidence interval [0.327 0.4627]1
QAB 105 Assignment On Quantitative Analysis for Business_2
Question 2 Probability distribution X-4012P(x)0.20.30.40.1a.)P(X>0)The value of P(X>0)¿P(X=1)+P(X=2)¿0.4+0.1¿0.5b.)P(X≤0)The value of P(X≤0)¿P(X=0)+P(X=−4)¿0.3+0.2¿0.5c.)P(x≤X≤1)The value of P(x≤X≤1)¿P(X=1)+P(X<0)+P(X←4)¿0.4+0.3+0.2¿0.9d.)P(X=−2)The value of P(X=−2)2
QAB 105 Assignment On Quantitative Analysis for Business_3

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