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An over-the-counter drug manufacturer wants to examine the effectiveness of a new drug in curing an illness most commonly found in older patients. Thirteen patients are given the new drug and 13 patients are given the old drug. To avoid bias in the experiment, they are not told which drug is given to them. To check how the effectiveness depends on the age of patients, the following data have been collected. New Drug: Patient Age 19 23 67 Effectiveness 34 15 80 56 45 37 27 47 29 59 51 63 28 59 47 54 26 53 41 77 67 79 22 Old Drug: Patient Age 21 28 33 Effectiveness 57 57 67 33 36 38 43 48 60 54 57 53 70 53 58 63 67 52 88 79 47 52 66 The variables are Effectiveness = the response variable measured on a scale from 0 to 100, Age the age of a patient (in years), Druga dummy variable that is 1 for the new drug and O for the old drug. The regression model, Effectiveness = ẞ0 + B1 Age + ẞ2 Drug + ẞ3Age x Drug, is estimated and the following results are obtained. Coefficients Standard Error t-stat p-value Intercept 46.77 3.1491 14.8519 4.97E-13 Age 0.37 0.0613 6.0359 1.94E-04 Drug Age x Drug -39.38 4.067 -9.6828 1.53E-09 0.60 0.0789 7.6046 8.85E-08 Which of the following is the predicted effectiveness of the old drug for a 67-year-old patient? Multiple Choice 69.02 65.38 21.98 71.56

An over-the-counter drug manufacturer wants to examine the effectiveness of a new drug in curing an illness most commonly found in older patients. Thirteen patients are given the new drug and 13 patients are given the old drug. To avoid bias in the experiment, they are not told which drug is given to them. To check how the effectiveness depends on the age of patients, the following data have been collected. New Drug: Patient Age 19 23 67 Effectiveness 34 15 80 56 45 37 27 47 29 59 51 63 28 59 47 54 26 53 41 77 67 79 22 Old Drug: Patient Age 21 28 33 Effectiveness 57 57 67 33 36 38 43 48 60 54 57 53 70 53 58 63 67 52 88 79 47 52 66 The variables are Effectiveness = the response variable measured on a scale from 0 to 100, Age the age of a patient (in years), Druga dummy variable that is 1 for the new drug and O for the old drug. The regression model, Effectiveness = ẞ0 + B1 Age + ẞ2 Drug + ẞ3Age x Drug, is estimated and the following results are obtained. Coefficients Standard Error t-stat p-value Intercept 46.77 3.1491 14.8519 4.97E-13 Age 0.37 0.0613 6.0359 1.94E-04 Drug Age x Drug -39.38 4.067 -9.6828 1.53E-09 0.60 0.0789 7.6046 8.85E-08 Which of the following is the predicted effectiveness of the old drug for a 67-year-old patient? Multiple Choice 69.02 65.38 21.98 71.56

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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An over-the-counter drug manufacturer wants to examine the effectiveness of a new drug in curing an illness most commonly found in older patients. Thirteen patients are given the new drug and 13 patients are given the old drug. To avoid bias in the experiment, they are not told which drug is given to them. To check how the effectiveness depends on the age of patients, the following data have been collected. New Drug: Patient Age 19 23 67 Effectiveness 34 15 80 56 45 37 27 47 29 59 51 63 28 59 47 54 26 53 41 77 67 79 22 Old Drug: Patient Age 21 28 33 Effectiveness 57 57 67 33 36 38 43 48 60 54 57 53 70 53 58 63 67 52 88 79 47 52 66 The variables are Effectiveness = the response variable measured on a scale from 0 to 100, Age the age of a patient (in years), Druga dummy variable that is 1 for the new drug and O for the old drug. The regression model, Effectiveness = ẞ0 + B1 Age + ẞ2 Drug + ẞ3Age x Drug, is estimated and the following results are obtained. Coefficients Standard Error t-stat p-value Intercept 46.77 3.1491 14.8519 4.97E-13 Age 0.37 0.0613 6.0359 1.94E-04 Drug Age x Drug -39.38 4.067 -9.6828 1.53E-09 0.60 0.0789 7.6046 8.85E-08 Which of the following is the predicted effectiveness of the old drug for a 67-year-old patient? Multiple Choice 69.02 65.38 21.98 71.56
Transcribed Image Text:An over-the-counter drug manufacturer wants to examine the effectiveness of a new drug in curing an illness most commonly found in older patients. Thirteen patients are given the new drug and 13 patients are given the old drug. To avoid bias in the experiment, they are not told which drug is given to them. To check how the effectiveness depends on the age of patients, the following data have been collected. New Drug: Patient Age 19 23 67 Effectiveness 34 15 80 56 45 37 27 47 29 59 51 63 28 59 47 54 26 53 41 77 67 79 22 Old Drug: Patient Age 21 28 33 Effectiveness 57 57 67 33 36 38 43 48 60 54 57 53 70 53 58 63 67 52 88 79 47 52 66 The variables are Effectiveness = the response variable measured on a scale from 0 to 100, Age the age of a patient (in years), Druga dummy variable that is 1 for the new drug and O for the old drug. The regression model, Effectiveness = ẞ0 + B1 Age + ẞ2 Drug + ẞ3Age x Drug, is estimated and the following results are obtained. Coefficients Standard Error t-stat p-value Intercept 46.77 3.1491 14.8519 4.97E-13 Age 0.37 0.0613 6.0359 1.94E-04 Drug Age x Drug -39.38 4.067 -9.6828 1.53E-09 0.60 0.0789 7.6046 8.85E-08 Which of the following is the predicted effectiveness of the old drug for a 67-year-old patient? Multiple Choice 69.02 65.38 21.98 71.56
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