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4) 54 bodybuilders who used the anabolic steroid Anavar reported a mean gain in muscle mass of 8.3 lbs., with a standard deviation of 2.1 lbs. 31 bodybuilders who used the veterinary anabolic steroid Equipoise reported a mean gain in muscle mass of 5.9 lbs., with a standard deviation of 1.9 lbs. To a 3% level of significance, can it be asserted that, in general, Anavar-using bodybuilders gain more muscle mass than do Equipoise-using bodybuilders?

4) 54 bodybuilders who used the anabolic steroid Anavar reported a mean gain in muscle mass of 8.3 lbs., with a standard deviation of 2.1 lbs. 31 bodybuilders who used the veterinary anabolic steroid Equipoise reported a mean gain in muscle mass of 5.9 lbs., with a standard deviation of 1.9 lbs. To a 3% level of significance, can it be asserted that, in general, Anavar-using bodybuilders gain more muscle mass than do Equipoise-using bodybuilders?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Answer questions 4 and 5 and show work as shown on the example
54 bodybuilders who used the anabolic steroid Anavar reported a mean gain in muscle mass of 8.3 lbs., with a standard deviation of 2.1 lbs. 31 bodybuilders who used the veterinary anabolic steroid Equipoise reported a mean gain in muscle mass of 5.9 lbs., with a standard deviation of 1.9 lbs. To a 3% level of significance, can it be asserted that, in general, Anavar-using bodybuilders gain more muscle mass than do Equipoise-using bodybuilders? 940 men and 969 women are polled; it's found that 216 of the men and 281 of the women belong to a gym. To a 5% level of significance, can it be asserted that, in general, a smaller percentage of men than women belong to a gym?
Transcribed Image Text:54 bodybuilders who used the anabolic steroid Anavar reported a mean gain in muscle mass of 8.3 lbs., with a standard deviation of 2.1 lbs. 31 bodybuilders who used the veterinary anabolic steroid Equipoise reported a mean gain in muscle mass of 5.9 lbs., with a standard deviation of 1.9 lbs. To a 3% level of significance, can it be asserted that, in general, Anavar-using bodybuilders gain more muscle mass than do Equipoise-using bodybuilders? 940 men and 969 women are polled; it's found that 216 of the men and 281 of the women belong to a gym. To a 5% level of significance, can it be asserted that, in general, a smaller percentage of men than women belong to a gym?
85 people who are hypnotized are able to keep their hands in an ice-bucket a mean time of 294 seconds, with a standard deviation of 13.3 seconds. 121 people who are not hypnotized are able to keep their hands in an ice-bucket a mean time of 195 seconds, with a standard deviation of 19.4 seconds. To a 1% level of significance, can it be asserted that, in general, people who are hypnotized can keep their hands in ice-water for a longer average time than can people who are not hypnotized? Hypnotied Not Hypnotized Hội thi He HA: 14₂71₂ mass = 294 St=133 M₂ = 2 m = 900 P=? =.79 n=121 5=15 S=19.4 HE O₂ = ? P-2's = = 80 800 43.45 Hardy fires 900 pistol shots at a target, and hits the bulls-eye with 711 of them. Fary fires 800 pistol shots at the target, and hits the bulls-eye with 640 of them. To a 2% level of significance, can it be asserted that, in general, Hardy hits the bulls-eye with a smaller percentage of his pistol shots than does Ear Hardy Fary (311+640) P= *.794779 A= 800 (900+800) Ho: P = ACCEPT! HA P PO-P+80-1) 400 800 √# + £ = √ ≈.01979 2.2785 400 31--21 (294-195) 5053 (8-5)-0's 2.2785 ACCEPT!!!!! Z (2-2)-o's 01979 (79-80) -01979 .51 Call Plutoni 2.13 2% ? YES!!!!! Z -2.05 O NO!
Transcribed Image Text:85 people who are hypnotized are able to keep their hands in an ice-bucket a mean time of 294 seconds, with a standard deviation of 13.3 seconds. 121 people who are not hypnotized are able to keep their hands in an ice-bucket a mean time of 195 seconds, with a standard deviation of 19.4 seconds. To a 1% level of significance, can it be asserted that, in general, people who are hypnotized can keep their hands in ice-water for a longer average time than can people who are not hypnotized? Hypnotied Not Hypnotized Hội thi He HA: 14₂71₂ mass = 294 St=133 M₂ = 2 m = 900 P=? =.79 n=121 5=15 S=19.4 HE O₂ = ? P-2's = = 80 800 43.45 Hardy fires 900 pistol shots at a target, and hits the bulls-eye with 711 of them. Fary fires 800 pistol shots at the target, and hits the bulls-eye with 640 of them. To a 2% level of significance, can it be asserted that, in general, Hardy hits the bulls-eye with a smaller percentage of his pistol shots than does Ear Hardy Fary (311+640) P= *.794779 A= 800 (900+800) Ho: P = ACCEPT! HA P PO-P+80-1) 400 800 √# + £ = √ ≈.01979 2.2785 400 31--21 (294-195) 5053 (8-5)-0's 2.2785 ACCEPT!!!!! Z (2-2)-o's 01979 (79-80) -01979 .51 Call Plutoni 2.13 2% ? YES!!!!! Z -2.05 O NO!
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