Question

So is the study inconclusive? The class decides that the sample size was too small and believe many more joeys should be sampled Well Christine can't do this all by herself (finding all these joeys and weighing them is exhausting workl) so she and 22 of her classmates all go to Australia and each of them finds and weighs 23 joeys (think about that - what is the sample size going to be?), They compile all their data, and determine the combined average weight to be 504.09 mg with the sample s.d still equal to 40 mg They perform an hvpothesis test using a0L 39. What test do they use and why? a) t-test because it's a sample s.d 40. The test is not significant at a-.01. However, using the p-value, how confident are we of the test result? a) 95.24% When Europeans first came to Australia, they thought that Koalas looked like bears and in fact that they were bears so they were often called 'Koala bears'. Koalas are not bears-they are marsupials and their correct name is 'Koalas Though often called the koala bear," this cuddly animal is not a bear at all; it is a marsupial, or pouched mammal. After giving birth, a female koala carries her baby in her pouch for about six months. www.todayifoundout com

Answer 1