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Q6. In a drug trial, 50 patients (samples) are divided into two groups (Group A and Group B) to identify the clinical effect of a drug. The data for patients in Group A ar given in the following table: Group A Family history of Average systolic heart attack No Sex Patient Number Age blood pressure Female 122 32 42 2 Female No 124 Male Female Male Yes No Yes Yes 31 156 4 63 99 48 138 30 Male 109 Male Male No 89 7 8 57 No No 46 114 Male Female Male Male Female Female 9. 28 86 10 54 No 134 Yes No No 11 38 146 12 53 134 13 51 115 14 46 Yes 134 Female Male Male Male No No 15 60 132 16 63 96 No No 17 33 87 18 45 93 19 29 Female Yes 152 20 34 Female No 121 31 Male Ves 112

Q6. In a drug trial, 50 patients (samples) are divided into two groups (Group A and Group B) to identify the clinical effect of a drug. The data for patients in Group A ar given in the following table: Group A Family history of Average systolic heart attack No Sex Patient Number Age blood pressure Female 122 32 42 2 Female No 124 Male Female Male Yes No Yes Yes 31 156 4 63 99 48 138 30 Male 109 Male Male No 89 7 8 57 No No 46 114 Male Female Male Male Female Female 9. 28 86 10 54 No 134 Yes No No 11 38 146 12 53 134 13 51 115 14 46 Yes 134 Female Male Male Male No No 15 60 132 16 63 96 No No 17 33 87 18 45 93 19 29 Female Yes 152 20 34 Female No 121 31 Male Ves 112

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Q6. In a drug trial, 50 patients (samples) are divided into two groups (Group A and Group B) to identify the clinical effect of a drug. The data for patients in Group A are given in the following table: Group A Patient Number Family history of Average systolic heart attack Age Sex blood pressure No No Yes Female 122 1 2 32 42 Female 124 Male Female Male Male Male 156 31 63 3 4 No 99 Yes Yes No No 138 48 30 109 57 89 8 46 Male 114 No Male Female Male Male 28 86 10 54 No 134 Yes 146 11 12 38 No 134 53 51 No Female Female 13 115 Yes No 14 46 134 15 Female 132 60 63 16 Male No 96 Male Male 17 33 No 87 18 45 No 93 Yes No Yes 19 29 Female 152 121 Female Male 34 20 21 44 112 22 47 Female No 114 23 56 Male No 119 No Male Female 24 48 97 25 29 Yes 120 a) Differentiate between qualitative and quantitative data with examples. Identity the qualitative and quantitative data from the table. b) Calculate the variance and standard deviation of Age for the 25 patients in Group А. c) Calculate the standard error and co-efficient of variation of Age for the 25 patients in Group A. d) For Group B, the mean age is 46 with a standard deviation of 5.3. Using the answers from b and c compare the variations of age in Group A and Group B. e) What are the limitations of standard deviation?
Transcribed Image Text:Q6. In a drug trial, 50 patients (samples) are divided into two groups (Group A and Group B) to identify the clinical effect of a drug. The data for patients in Group A are given in the following table: Group A Patient Number Family history of Average systolic heart attack Age Sex blood pressure No No Yes Female 122 1 2 32 42 Female 124 Male Female Male Male Male 156 31 63 3 4 No 99 Yes Yes No No 138 48 30 109 57 89 8 46 Male 114 No Male Female Male Male 28 86 10 54 No 134 Yes 146 11 12 38 No 134 53 51 No Female Female 13 115 Yes No 14 46 134 15 Female 132 60 63 16 Male No 96 Male Male 17 33 No 87 18 45 No 93 Yes No Yes 19 29 Female 152 121 Female Male 34 20 21 44 112 22 47 Female No 114 23 56 Male No 119 No Male Female 24 48 97 25 29 Yes 120 a) Differentiate between qualitative and quantitative data with examples. Identity the qualitative and quantitative data from the table. b) Calculate the variance and standard deviation of Age for the 25 patients in Group А. c) Calculate the standard error and co-efficient of variation of Age for the 25 patients in Group A. d) For Group B, the mean age is 46 with a standard deviation of 5.3. Using the answers from b and c compare the variations of age in Group A and Group B. e) What are the limitations of standard deviation?
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