COMM111GROUP2 by Victor Chao https://padlet.com/victorchaochn/GROUP2 Made with a warm hug en-us 2021-09-20 21:12:17 UTC 2024-12-01 16:06:25 UTC hello@padlet.com A doctor claims that the average Australian is more than 5 kgs overweight. To test this claim, a random sample of 15 Australians were weighed, and the difference between their actual weight and their ideal weight was calculated. The data is displayed below: victorchaochn https://padlet.com/victorchaochn/GROUP2/wish/1771140091 2021-09-27 13:37:29 UTC https://padlet.com/victorchaochn/GROUP2/wish/1771140091 5.1, 5.2, 4.7, 5.2, 5.8, 4.9, 4.5, 6.3, 4.8, 5.8, 5, 5.2, 4.8, 6, 5.6 victorchaochn https://padlet.com/victorchaochn/GROUP2/wish/1771140386 2021-09-27 13:37:33 UTC https://padlet.com/victorchaochn/GROUP2/wish/1771140386 Assuming that the underlying data is normally distributed, can we conclude with alpha= 0.05 that enough evidence exists to show that the doctor’s claim is true? Support your answer with a formal hypothesis test. victorchaochn https://padlet.com/victorchaochn/GROUP2/wish/1771140691 2021-09-27 13:37:38 UTC https://padlet.com/victorchaochn/GROUP2/wish/1771140691 victorchaochn https://padlet.com/victorchaochn/GROUP2/wish/1771141110 2021-09-27 13:37:43 UTC https://padlet.com/victorchaochn/GROUP2/wish/1771141110 Step 1. Specify an appropriate ‘pair’ of hypotheses victorchaochn https://padlet.com/victorchaochn/GROUP2/wish/1771141638 2021-09-27 13:37:52 UTC https://padlet.com/victorchaochn/GROUP2/wish/1771141638 Step 2. Specify the level of significance for the test, which will dictate a criticalvalue from a statistical table victorchaochn https://padlet.com/victorchaochn/GROUP2/wish/1771141912 2021-09-27 13:37:56 UTC https://padlet.com/victorchaochn/GROUP2/wish/1771141912 step 3. Calculate the test statistic from the sample data (can be done by Excel) victorchaochn https://padlet.com/victorchaochn/GROUP2/wish/1771142285 2021-09-27 13:38:01 UTC https://padlet.com/victorchaochn/GROUP2/wish/1771142285 Step 4. Decide whether to reject the null hypothesis victorchaochn https://padlet.com/victorchaochn/GROUP2/wish/1771142549 2021-09-27 13:38:06 UTC https://padlet.com/victorchaochn/GROUP2/wish/1771142549 step 5. Interpret your results within the context of the problem victorchaochn https://padlet.com/victorchaochn/GROUP2/wish/1771142837 2021-09-27 13:38:10 UTC https://padlet.com/victorchaochn/GROUP2/wish/1771142837