Question

12. Using the letters arrangements of the letters is: a) 30 in "BANANA", since there are 3 As, and 2 Ns, the number of different or distinct 13. You decide to watch 4 shows. If there are 8 shows from which to choose, then in how many ways can you select the 4 shows you will watch? a) 32 14. Find the mean of a binomial distibution where n 4 and 15. Find the standard deviation of a binomial distribution where n -4 and p-s a) 0 a) 0 16. Given a binomial distribution with 11 events and the probability of success for an event equal to .25, 17. Find the area under the normal curve to the right of z-67 18. Find the area under the normal curve between z--1.25 and z- 1.0 19. If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, find the what's the probability of getting at least 4 successes? a) 2867 a) .7486 a) .7486 proportion of scores less than 88. a) 3173 a) 3173 distriburtion of all possible samples of size 100. The mean of the sample means is equal to: 20. Same as above except find the proportion of scores greater than I standard deviation from the mean. 21. Consider a university with a population mean GPA of 2.95, a standard deviation of 2, and a 22. Same as above, the standard deviation of the sample means is equal to: 23. What is the effect of choosing a larger sample size for the sampling distribution? a) 2.45 a) 2.45 a) mean increases, standard deviation unchanged 24. As sample size increases, σ and the sampling distribution of the mean will have relatively little dispersion resulting in sample means falling relatively a) increases, far from the population mean. 25. Given a test statistic of 2.09 paired with a critical z-score of 1.65 on a one tailed test, then the conclusion is a) fail to reject Ho at α

Answer 1

My dear student you posted multiple questions as per HOMEWORKLIB RULES I have solved the first six questions.thank you.