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3. A medical research team conducted a study to test the effect of a migraine drug....
A medical research team conducted a study to test the effect of a cholesterol reducing medication....
A medical research team conducted a study to test the effect
of a cholesterol reducing medication. At the end of the study, the
researchers found that of those 4700 randomly selected who took the
medication, 301 died of heart disease. 4300 randomly selected
subjects who took a placebo, 357 died of heart disease
10) The calculated value of the test statistic equals: a) 3.46 b) -3.46 c)-2.76 d) 2.76 e) 1.31 f) -1.31 h) .46 i) -46 j) None of...
A medical researcher is conducting a study to test the effect of an anti-depression drug. At...
A medical researcher is conducting a study to test the effect of an anti-depression drug. At the end of the study, the researcher found that of the 4400 randomly selected subjects who took the drug 301 had no improvement at all. Of the 4700 randomly selected subjects who took the placebo 357 had no improvement at all. At can you support the claim that the proportion of subjects that have no improvement is the same for both groups.
2. A study was conducted to test the effect of a new drug (Clofibrate) on reducing...
2. A study was conducted to test the effect of a new drug (Clofibrate) on reducing the coronary death compared to placebo. Patients were randomized into two groups at 1:2 ratio. Of 1065 subjects in the treatment group, 194 died at 5 years, whereas 523 of 2695 subjects in the placebo group died at 5 years. Answer these questions: a) what is the study design? b) generate a 2 by 2 table, c) calculate the crude mortality rates for both...
A drug company wanted to test the effectiveness of a new pain reliever for people who...
A drug company wanted to test the effectiveness of a new pain reliever for people who suffer from migraine headaches. They selected a random sample of 400 people who suffer from migraine headaches and gave 200 of them the new pain reliever; the other 200 were given a placebo (i.e., a sugar pill that appeared in all respects identical to the new pain reliever). After one month, people in both groups were asked to report if the pill they took...
q27 A research team is studying a new pain medication for patients suffering from fibromyalgia. Patients...
q27 A research team is studying a new pain medication for patients suffering from fibromyalgia. Patients suffering from chronic pain as a result of fibromyalgia were divided into two categories: Treatment and Placebo. Patients in the treatment group were injected with the new drug while patients in the placebo group were injected with saline solution. Neither the patients, nor the health care practitioners admininstering the study knew who was receiving the actual drug. After two weeks the patients were asked...
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...
An experiment was conducted to test the effect of a new drug on a viral infection....
An experiment was conducted to test the effect of a new drug on a viral infection. The infection was induced in 100 mice, and the mice were randomly split into two groups of 50. The first group, the control group, received no treatment for the infection. The second group received the drug. The proportions of survivors, p̂1 and p̂2, in the two groups after a 30-day period, were found to be 0.40 and 0.64, respectively. Is there sufficient evidence to...
A study was conducted to test the effectiveness of an asthma drug and the results were...
A study was conducted to test the effectiveness of an asthma drug and the results were published in an academic journal. Which one of the following is a sign of a badly conducted study? A. The study indicates whether the research was done on cells, animals or humans. B. The study indicates the approximate dose of drugs given to the test subjects. C. The study indicates if there was an untreated control group. D. A diverse group of individuals participated...
hw 9 # 18 Researchers conducted an experiment to test the effects of alcohol. Errors were...
hw 9 # 18 Researchers conducted an experiment to test the effects of alcohol. Errors were recorded in a test of visual and motor skills for a treatment group of 24 people who drank ethanol and another group of 24 people given a placebo. The errors for the treatment group have a standard deviation of 2.10, and the errors for the placebo group have a standard deviation of 0.72. Use a 0.05 significance level to test the claim that the...
A medical research team conducted a study to test the effect
of a cholesterol reducing medication. At the end of the study, the
researchers found that of those 4700 randomly selected who took the
medication, 301 died of heart disease. 4300 randomly selected
subjects who took a placebo, 357 died of heart disease
10) The calculated value of the test statistic equals: a) 3.46 b) -3.46 c)-2.76 d) 2.76 e) 1.31 f) -1.31 h) .46 i) -46 j) None of...
2. A study was conducted to test the effect of a new drug (Clofibrate) on reducing the coronary death compared to placebo. Patients were randomized into two groups at 1:2 ratio. Of 1065 subjects in the treatment group, 194 died at 5 years, whereas 523 of 2695 subjects in the placebo group died at 5 years. Answer these questions: a) what is the study design? b) generate a 2 by 2 table, c) calculate the crude mortality rates for both...
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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