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- Find the highest possible value for x in the set 8.2 7.7 6 4.8 8.2 5.8 9.2 7.3 6.2 8.1 5.5 and x such that the mean of these scores is 7. show complete solutionSuppose now that you have good arguments to say that the association between X andC (the unobserved confounding factor, here IQ at age 3), measured by γCX, is of a similarmagnitude as the association between X and A, measured by γAX — which you can computein your data (since A is observed). Would this new condition (γCX = γAX). Why?Of all customers purchasing automatic garage door openers, 75% purchase chain-driven model.Let X = the number among the next 15 purchasers who select the chain-driven model.a. What is the frequency function (pmf) of X?b. Compute P(X > 10).c. Compute P( 6 ≤ X ≤ 10).d. Compute µ and σ^2. e. If the store currently has in stock 10 chain-driven models and 8 shaft-driven models, what is theprobability that at least 7 out of the 15 customers select a chain-driven model from this stock? Please solve all and explain.
- Of all customers purchasing automatic garage door openers, 75% purchase chain-driven model.Let X = the number among the next 15 purchasers who select the chain-driven model.a. What is the frequency function (pmf) of X?b. Compute P(X > 10).c. Compute P( 6 ≤ X ≤ 10).d. Compute µ and σ^2. e. If the store currently has in stock 10 chain-driven models and 8 shaft-driven models, what is theprobability that at least 7 out of the 15 customers select a chain-driven model from this stock? Please help with parts a, b, and c.A national consumers’ association determines that x years after its founding in 1998, it will have P(x) members, where P(x) = 2x3 - 45x2 + 264x in hundreds. a). When was the membership the largest between 2000 and 2013, that is, 2 < t < 15? b). When was the membership the smallest between 2000 and 2013, that is, 2 < t < 15?Suppose that we have two attributes, gender and programs and, we observe the values of bothvariables through a random sample as given below: a. selected student is male or from the Computing Engineering b. selected student is female given that she is from Electronics and Instrumentation c. selected student is not from the Computing Engineering T =28
- If the alleles A and B of the cystic fibrosis gene occur in a population with frequencies p and 1 - p (where pis between 0 and 1), then the frequency of heterozygous carriers (carriers with both alleles) is 2p(l - p). Which value of p gives the largest frequency of heterozygous carriers?The management of the local zoo wants to know if all of their animal exhibits are equally popular. If there is significant evidence that some of the exhibits are not being visited frequently enough, then changes may need to take place within the zoo. A tally of visitors is taken for each of the following animals throughout the course of a week, and the results are contained in the following table. At α=0.05, determine whether there is sufficient evidence to conclude that some exhibits are less popular than others. Animal Exhibits at the ZooElephants Lions/Tigers Giraffes Zebras Monkeys Birds ReptilesNumber of visitors 137 129 161 147 160 134 131 Step 3 of 4 : Compute the value of the test statistic. Round any intermediate calculations to at least six decimal places, and round your final answer to three decimal places. Step 4 of 4: Draw a conclusion and interpret the decision. (Reject or fail to reject, Is there enough evidence or not?)The management of the local zoo wants to know if all of their animal exhibits are equally popular. If there is significant evidence that some of the exhibits are not being visited frequently enough, then changes may need to take place within the zoo. A tally of visitors is taken for each of the following animals throughout the course of a week, and the results are contained in the following table. At α=0.05, determine whether there is sufficient evidence to conclude that some exhibits are less popular than others. Animal Exhibits at the Zoo Elephants Lions/Tigers Giraffes Zebras Monkeys Birds Reptiles Number of visitors 139 136 169 125 174 137 174 Copy Data Step 3 of 4 : Compute the value of the test statistic. Round any intermediate calculations to at least six decimal places, and round your final answer to three decimal places.