Question

Please ignore the circled answers. I am checking my results.

d reject because ts eject So is the study inconclusive? The class decides that the sample size was too small and believe many more joeys s and weighing them is o Australia and each of them finds and weighs 23 ile all their data and determine the ioeys think about that -what is the sample size going to be?). They compi combined average weight to he 504.09 mg with the sample sd.still equal to 40ms They perform an hvnothesis test using a 01. 39. What test do they use and why? a) t-test because it's a sample s.d. c) z-test because it's a large enough sample d) z-test because it's a sample s.d. e) none of these b) t-test because the sample is small 40, The test is not significant at α-,01. However, using the p-value, how confident are we of the test result? a) 95.24% b) 96.88% c) 98.12% d) 99.06% e) none of these

Answer 1

39. Since the sample size is less than 30 and also sample standard deviation is given hence for hypothesis test we use

b) t test because the sample is small

40.Since the test is not significant at 0.01 , hence we can conclude by p value approach that the test is

d) 99.06 confident