Group Assignment Problein 1 A case-control study was conducted to identify reasons for exceptionally high rate of lung c

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Group Assignment Problein 1 A Case Control Study Was Conducted To Identify Reasons For Exceptionally High Rate Of Lung C 1 (66.73 KiB) Viewed 35 times

Group Assignment Problein 1 A case-control study was conducted to identify reasons for exceptionally high rate of lung cancer among male residents of coastal Georgia. The primary risk factor under investigation was employment in shipyards during World War II. Cases: Specific diseases are ascertained. Control: Disease free individuals. Lung Cancer Cases Control 11 35 Yes Ship Building Working No 50 61 203 238 Is there any significant difference that lung cancer affected more when working in shipyard? Problem 2 The weight of 10 cows before they are subjected to a change in diet and after a change of 6 month is recorded below. 6 8 SL. No. Before diet After change of diet 1 2 109 112 115 120 3 98 99 4 114 117 5 102 105 97 7 88 91 101 99 9 89 93 10 91 89 98 Is there significant gain in weight after change in diet at 5% significance level? Problem 3 The correlation coefficient between verbal and math score for a sample of 20 students was found to be 0.203. Is there any correlation between verbal and math score for the students population? Problem 4 The correlation coefficient between brother's height and sister's height of 53 brothers and sisters pair was found 0.585. Is this coefficient significantly smaller than 0.80?