Please see attached.
14. A binomial distribution is a probability distribution for events for which there are _ possible outcomes a. Independent; two b. Dependent; two c. Independent; multiple d. Dependent; Multiple Use the following information to answer the next three questions: Using a sample of 15 Stanford-Binet IQ scores. we wish to conduct a hypothesis test. Our claim is that the mean IQ score of UMUC students is more than 100 (Ll > 100). It is known that the standard deviation of all Stanford- Binet IQ scores is 15 points (0 =15). 15. The correct distribution to use for the hypothesis test is: a. Binomial b. Student'st c. Normal d. Chi Square e. F 16. This hypothesis testing involves a _ test: a. right-tailed b. left-tailed c. two-tailed d. homogeniety e. independence 1?. The Type II Error involved in this hypothesis testing is to: a. conclude that the mean IQ score of UMUC students is more than 100 (p > 100) when it is not (11 s 100). b. conclude that the mean IQ score of UMUC students is more than 100 (Ll > 100) when, in fact, it is more. c. conclude that the mean IQ score of UMUC students is equal or less than 100 (u s 100) when it is more (|.l > 100). d. conclude that the mean IQ score of UMUC students is equal or less than 100 (u s 100) when, in fact. it is equal or less than 100. 16. In hypothesis testing, the null hypothesis should be rejected when the test statistic is than . a. greater, alpha b. less, alpha c. greater, P-value d. less, P-value e. greater, critical value f. less, critical value 9. none of the above 19. An agency reported that the work force nationwide is composed of 10% professional. 10% clerical, 30% skilled. 15% service. and 35% semiskilled laborers. A random sample of 100 San Diego residenm indicated 15 professional, 15 clerical, 40 skilled, 10 service, and 20 semiskilled laborers. To determine if the work force in San Diego is consistent with the agency report for the nation, the test should use a. Chi square goodness of fit b. Chi test of independence 0. F distribution test d. t Distribution test e. normal distribution test f. None of the above Use the following information to answer the next three exercises. A study of the career plans of young women and men sent questionnaires to all 722 members of the senior class in the College of Business Administration at the University of Illinois. One question asked which major within the business program the student had chosen. Here are the data from the students who responded. 20. To determine if there is a relationship between the gender of students and their choice of major, the test should be a. Chi square goodness of fit b. Chi test of independence 0. F distribution test d. t Distribution test e. normal distribution test f. None of the above 21. The degrees of freedom in the test statistic calculation should be a. 721 b. 1 c. 2 d. 3 e. 8 1'. none of these 9. the degrees of freedom is no necessary for the calculation 22. The expected number of female who choose finance is a. 37 b. 60 c. 61 d. 59 e. 70 f. none of these 23. The lifetime of a computer circuit board is normally distributed with a mean of 2,500 hours and a standard deviation of 60 hours. What is the probability that a randomly chosen board will last at most 2,560 hours? a. 0.9532 b. 0.8413 c. 0.1587 d. 0.3461 e. 0.6539 f. none of these
