Question

of 2.33 on a one tailed test, then the conclusion 26. Given a test statistic of 2.09 paired with a critical z-score a) fail to reject Ho at α-1% At a 95% confidence interval, how often would we expect μ to fall outside the interval a) 95% 27. We are allowed to use the normal distribution if a) σ is known 28. When we determine a p-value for an h a) a 29. What action will cause the confidence interval to widen? a) increase the confidence level 30. assume the weight of koala newhorns foeys) is normally distributed with an average of 500 iation of 40 mg. By the way they are not bears and it's incorrect to call them koalab 31. If I joey is chosen at random, what's the probability that it weighs between 450 and 470 mg? 32. If I joey is chosen at random, what's the probability that it weighs exactly 500 mg? 33. If 10 joeys are chosen at random, how likely is it that they average between 450 and 470 mg? Now Christine thinks that this assumed average population weight might be incorrect so she takes a trip to of 40 mg liwhich she assumes to be the population standard deviation) She performs an hypothesis test using 34. What is the critical value (ze or te) to be used in this test? 35. What is the p-value result for this test? 36. Does Christine reject or fail to reject (FTR) Ho and for what reason? a) 0 a) 0 a) 1% le size of 16. she gets an average weight of 480 mg and a standard deviation a) +1.96 a) .0050 a) FTR because ltsz Her classmates obiect to Christine's assumption that the population standard deviation is 40 and feel it should 37. What is the new critical value (ze or t) to be used in this test? a) a1.96

Answer 1