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3. (9pts) A study was done to determine the efficacy of three different drugs – A,...
A study was done to determine the efficacy of three different drugs-A, B, and C-in relieving...
A study was done to determine the efficacy of three different drugs-A, B, and C-in relieving headache pain. Over the period covered by the study, 50 subjects were given the chance to use all three drugs. The following results were obtained: 21 reported relief from drug A 21 reported relief from drug B 30 reported relief from drug C 7 reported relief from both drugs A and 14 reparted relief from both drugs A and C 15 reported relief from...
discrete math 1. Suppose that three friends, all heavy smokers, each have a 50-50 chance of...
discrete math
1. Suppose that three friends, all heavy smokers, each have a 50-50 chance of developing lung cancer (a) Tracking whether each of the friends develops hung cancer, write down the sample space by listing its elements. Be clear about any notation that you choose to use. (b) What is the probability that exactly one of the friends develops lung cancer? (c) What is the probability that at least two of the friends develop lung cancer? 2. Six people...
discrete math do all please 2. Six people attend the theater together and sit in a...
discrete math do all please
2. Six people attend the theater together and sit in a row with exactly six seats. (a) In how many ways can they be seated together in the row? (b) Suppose one of the six is a doctor who must sit in a specific aisle seat in case she is paged. How many ways can the people be seated together in the row with the doctor in the aisle seat? (c) Suppose the six people...
A pharmaceutical trial tests the effectiveness of 3 different drugs (A, B, and C) for relieving...
A pharmaceutical trial tests the effectiveness of 3 different drugs (A, B, and C) for relieving arthritis symptoms. 30% of the participants in the trial are given drug A. Of those, 70% experience relief from their symptoms (event R). 32% of participants are given drug B, of which 80% experience relief. The remaining 38% of participants are given drug C, of these 53% experience relief. a. What’s the probability that a participant did not experience relief if they took drug...
4. A study is conducted to determine the efficacy of the influenza vaccine. Subjects agree to...
4. A study is conducted to determine the efficacy of the influenza vaccine. Subjects agree to participate for 2 years. In year 1, subjects are randomly assigned to be injected with the vaccine or a placebo. In year 2, the subjects who previously received the live vaccine are given the placebo and vice versa. Incidence rates of influenza for both groups over the 2 year period are recorded. a. This is an unethical study b. This is an invalid study...
Karina is part of a clinical study to test the effects of two different drugs on...
Karina is part of a clinical study to test the effects of two different drugs on lowering blood pressure. The study is carried out over several months. Each week she takes a different dose of either drug'x or 'y.Which drug has a higher efficacy? (Note: Karina's data will appear again in another question in this problem set. 5mg of Drug 'x lowers her blood pressure by 5mmHg 10mg of Drug'x lowers her blood pressure by 10mmHg 20mg of Drug'x lowers...
PRE-TEST QUESTION: 5. Seven people were selected for a study to compare pain relievers (Drug A...
PRE-TEST QUESTION:
5. Seven people were selected for a study to compare pain relievers (Drug A and Drug B). Each person was given both drugs, one after the other. There was enough time between the two drugs so that the first one did not affect the second one. The drug that was given first was determined randomly. The people in the study gave a pain relief score on a scale of 1 to 100. Data and an Excel analysis are...
3. The following contingency table represents a study to determine if a new drug is effective...
3. The following contingency table represents a study to determine if a new drug is effective in treating lower back pain. Participants were asked their pain levels two weeks after taking the two different treatments. No Pain Moderate Pain High Pain Drug 36 131 82 Placebo 12 194 157 a. How many of the patients had no pain or took the drug? (5) b. What percent of the patients had a high pain level? (5) c. What percent of the...
The following contingency table represents a study to determine if a new drug is effective in...
The following contingency table represents a study to determine if a new drug is effective in treating lower back pain. Participants were asked their pain levels two weeks after taking the two different treatments. drug placebo no pain 36 12 moderate pain 131 194 high pain 82 157 a) How many of the patients had no pain or took the drug? b) What percent of the patients had a high pain level? c) What percent of the patients who took...
A study was conducted to compare the effects of three different drugs on the alleviation of anxious depression in non-psychotic patients. Twelve non-psychotic patients, all suffering from moderate to...
A study was conducted to compare the effects of three different drugs on the alleviation of anxious depression in non-psychotic patients. Twelve non-psychotic patients, all suffering from moderate to severe depression and anxiety, were grouped according to initial level of severity. Patients in each severity level group were randomly assigned to the three treatments (drugs). At the end of the experimental period, a combined anxiety and depression score as determined by the MMPI and Taylor Manifest Anxiety Scale was recorded...
A study was done to determine the efficacy of three different drugs-A, B, and C-in relieving headache pain. Over the period covered by the study, 50 subjects were given the chance to use all three drugs. The following results were obtained: 21 reported relief from drug A 21 reported relief from drug B 30 reported relief from drug C 7 reported relief from both drugs A and 14 reparted relief from both drugs A and C 15 reported relief from...
discrete math
1. Suppose that three friends, all heavy smokers, each have a 50-50 chance of developing lung cancer (a) Tracking whether each of the friends develops hung cancer, write down the sample space by listing its elements. Be clear about any notation that you choose to use. (b) What is the probability that exactly one of the friends develops lung cancer? (c) What is the probability that at least two of the friends develop lung cancer? 2. Six people...
discrete math do all please
2. Six people attend the theater together and sit in a row with exactly six seats. (a) In how many ways can they be seated together in the row? (b) Suppose one of the six is a doctor who must sit in a specific aisle seat in case she is paged. How many ways can the people be seated together in the row with the doctor in the aisle seat? (c) Suppose the six people...
Karina is part of a clinical study to test the effects of two different drugs on lowering blood pressure. The study is carried out over several months. Each week she takes a different dose of either drug'x or 'y.Which drug has a higher efficacy? (Note: Karina's data will appear again in another question in this problem set. 5mg of Drug 'x lowers her blood pressure by 5mmHg 10mg of Drug'x lowers her blood pressure by 10mmHg 20mg of Drug'x lowers...
PRE-TEST QUESTION:
5. Seven people were selected for a study to compare pain relievers (Drug A and Drug B). Each person was given both drugs, one after the other. There was enough time between the two drugs so that the first one did not affect the second one. The drug that was given first was determined randomly. The people in the study gave a pain relief score on a scale of 1 to 100. Data and an Excel analysis are...
3. The following contingency table represents a study to determine if a new drug is effective in treating lower back pain. Participants were asked their pain levels two weeks after taking the two different treatments. No Pain Moderate Pain High Pain Drug 36 131 82 Placebo 12 194 157 a. How many of the patients had no pain or took the drug? (5) b. What percent of the patients had a high pain level? (5) c. What percent of the...
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