MATH 3339 FINAL TESTED EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS A+ VERIFIED 100+ PASS

MATH 3339 FINAL TESTED EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS A+ VERIFIED 100+ PASS Suppose that in a large metropolitan area, 73% of all households have cable tv. Suppose you are interested in selecting a group of six households from this area. Let X be the number of households in a group of six households from this area that have cable tv. For what proportion of groups will at most two of the households have cable tv? - correct answers-pbinom (2,6,.73) A potato chip company calculated that there is a mean of 75.4 broken potato chips in each production run with a standard deviation of 5.2. If the distribution is approximately normal, find the probability that there will be fewer than 66 broken chips in a run. - correct answers-pnorm(66,75.4,5.2) A distribution of grades in an introductory statistics class (where A = 4, B = 3, etc) is: x= 0,1,2,3,4 p(x)= 0.1,0.18,.22,.31,.19 find the mean and variance - correct answers-sum(x*p) sum(x^2*p)-(sum(x*p)^2) The weights of male and female students in a class are summarized in the following boxplots: Which of the following is NOT correct? - correct answers-The male students have less variability than the female students. P(A) = 0.31, P(B)=0.46 and P(AnB)=0.14, find P(AIB) - correct answers-0.,14/0.46 Identify the most appropriate test to use for the following situation:A private and a public university are located in the same city. For the private university, 1046 alumni were surveyed and 653 said that they attended at least one class reunion. For the public university, 791 out of 1327 sampled alumni claimed they have attended at least one class reunion. Is the difference in the sample proportions statistically significant? - correct answers-Two sample z test for proportions