ZuoTi.Pro
Question

A random sample of patients with obsessive-compulsive disorder were treated with a drug or a placebo....

A random sample of patients with obsessive-compulsive disorder were treated with a drug or a placebo. After 6 months the drug group had 39 of 93 patients show improvement. The placebo group had 25 of 95 patients show improvement. At α=0.10 can you conclude that the drug group had a greater proportion that showed improvement than the placebo group?

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

p-value < = 0.10

Hence, reject null hypothesis (H0)

Conclusion:- Reject Null hypothesis (H0), there sufficient evidence to conclude that the drug group had a greater proportion that showed improvement than the placebo group.

0 0
Add a comment
Know the answer?
Add Answer to:
A random sample of patients with obsessive-compulsive disorder were treated with a drug or a placebo....
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 5. In clinical trials of a certain drug, 435 were given a placebo and 129had an...

    5. In clinical trials of a certain drug, 435 were given a placebo and 129had an allergic reaction ( or at least claimed that they did). Among 831 people who were given 10mg of the drug, 220 had an allergic reaction. a. Find the 95% confidence interval for the proportion of patients in the placebo group who had an allergic reaction. ( round to three decimal places) b. Find the 95% confidence interval for the proportion of patients who took...

  • A multicenter double-blind randomized study was carried out to compare the effect of drug X with that of a placebo in patients surviving acute myocardial infarction (AMI). Treatment with the drug star...

    A multicenter double-blind randomized study was carried out to compare the effect of drug X with that of a placebo in patients surviving acute myocardial infarction (AMI). Treatment with the drug started 7 days after infarction in 1,884 patients, 52% of all persons who were evaluated for entry into the study. 945 participants were randomized to treatment with drug X while 939 were assigned to the placebo group. Patients were then followed for 12 months for reinfarction. There were 152...

  • 2. (40 points) in clinical trials of the drug Lipitor, 270 subjects were given a placebo...

    2. (40 points) in clinical trials of the drug Lipitor, 270 subjects were given a placebo and 7 of them had an allergic reaction. Among 863 subjects treated with 10 mg of Lipitor, 18 of them experienced an allergic reaction. Construct two 95% confidence interval estimates of the percentages of allergic reactions. Show all formulas and substitutions, even if you do the work on your calculator. Compare the results. What do you conclude? Answer in complete sentences.

  • An estimated 1 million people in CountryX have advanced bad breath syndrome (ABBS). 100 patients were...

    An estimated 1 million people in CountryX have advanced bad breath syndrome (ABBS). 100 patients were assigned randomly into two groups of 50 patients to receive either DrugA or a placebo. No patients within either group showed improvement in ABBS. It was concluded that DrugA was not effective in the treatment of ABBS. Is it reasonable for the researchers to conclude that DrugA is not effective in treating ABBS? A. No; confounding variables can have an effect B. Yes; random...

  • A random sample of patients participated in a study to determine if a drug was effective...

    A random sample of patients participated in a study to determine if a drug was effective in decreasing triglyceride levels in mg/d, For each patient, the initial triglyceride level and the level after taking the drug for two months were recorded. Does it appear the drug is effective? Assume a 10% level of significance. (If the drug is deemed effective, more testing on a larger sample will be performed. This is a preliminary (small scale) investigation.) Patient Initial level 2-month...

  • In a study of woments for very unter" headaches, 16 patients were treated with oxygen and...

    In a study of woments for very unter" headaches, 16 patients were treated with oxygen and 146 other patients were given a placebo coordinary Among the patients in the skypen treatment group, 123 were free from headaches 15 minutes after treatment Among the 196 ports on the placebo, 28 were free from headaches 15 minutes after treatment the Oscancerved to test the claim that the wygen att etective Complete para toch below a. Test the coming a hypothesis test Consider...

  • A large study showed that aspirin reduced the rate of first heart attacks. A pharmaceutical compa...

    A large study showed that aspirin reduced the rate of first heart attacks. A pharmaceutical company thinks that they have a drug that will be more effective than aspirin, and plans to do a randomized clinical trial to test the new drug. They determine the following null and alternative hypotheses: Example 2: a) Ho: the new drug is not more effective than aspirin HA: the new drug is more effective than aspirin hey conduct the trial. The group that used...

  • A sample of 9 days over the past six months showed that a dentist treated the...

    A sample of 9 days over the past six months showed that a dentist treated the following numbers of patients at his dental clinic: 22, 26, 20, 18, 15, 22, 25, 19, and 26. If the number of patients seen per day is normally distributed, would an analysis of these sample data reject the hypothesis that the variance in the number of patients seen per day is equal to 10? Use a 0.10 level of significance. State the null and...

  • 7. A study was conducted to investigate the effectiveness of a new drug for treating Stage...

    7. A study was conducted to investigate the effectiveness of a new drug for treating Stage 4 AIDS patients. A group of AIDS patients was randomly divided into two groups. One group received the new drug; the other group received a placebo. The difference in mean subsequent survival (those with drugs - those without drugs) was found to be 1.04 years and a 95% confidence interval was found to be 1.04 ± 2.37 years. Based upon this information: Select one...

  • A random sample of n1 = 16 communities in western Kansas gave the following information for peopl...

    A random sample of n1 = 16 communities in western Kansas gave the following information for people under 25 years of age. x1: Rate of hay fever per 1000 population for people under 25 98 92 119 127 93 123 112 93 125 95 125 117 97 122 127 88 A random sample of n2 = 14 regions in western Kansas gave the following information for people over 50 years old. x2: Rate of hay fever per 1000 population for...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT