Question 1A sports shop selects a random sample and records the sales of items made in China and thosemade in America.Country of OriginChinaMean22.5Std. Deviation9.7550America3333.1511.6a) What is the SE Mean for the sales from China?b) Calculate a 95% confidence interval for the mean sales amount made in America ProbabilityPoisson distributionP(A or B) = P(A) + P(B) – P(A and B)P(A and B) = P(A) x P(B) for independent eventsX- Po(A)P(A and B) = P(A) x P(B|A) for dependent eventsP(X - x) = **x!P(A and B)P(B|A) =P(A)Confidence IntervalNormal Distribution1. z-confidenceinterval:X- N(4, ơ)X-u2. t-confidenceinterval:1. Standard normal: Z -(df -n-1)3. Confidence intervalfor proportion:P(1 – P)nSampling Distribution1. 4 =42.Test StatisticsX-41. z-test for p : 2=3.X - µ2.t-test for u: t =(d.f. = n-1)S/ VnDiscrete Probability Distribution3. z-test forp: z-» np 2 51. EÇX) = µ, = Ex,P,P(1 - P),and np z 5 (where q = 1-p)Var(X) = o = 2(x, -4,)°p,%3D%3D4. Chi-square test statistic = y0- E)(0-E)Binomial DistributionΣX- Bin(n, p)n-kP(X - k) -P" (1-n!p (1-n-kk!(n -k)!

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Description: Question 1A sports shop selects a random sample and records the sales of items made in China and thosemade in America.Country of OriginChinaMean22.5Std. Deviation9.7550America3333.1511.6a) What is the SE Mean for the sales from China?b) Calculate a

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Question 1 A sports shop selects a random sample and records the sales of items made in China and those made in America. Country of Origin China 50 Mean 22.5 Std. Deviation 9.75 America 33 33.15 11.6 a) What is the SE Mean for the sales from China? b) Calculate a 95% confidence interval for the mean sales amount made in America

Question 1 A sports shop selects a random sample and records the sales of items made in China and those made in America. Country of Origin China 50 Mean 22.5 Std. Deviation 9.75 America 33 33.15 11.6 a) What is the SE Mean for the sales from China? b) Calculate a 95% confidence interval for the mean sales amount made in America

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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