biostatistic

posted by .

there are 200 subjects enrolled to receive either experimental medications or placebo. At the end of study following data is collected after 6 week.
(sd)= standard deviation.
BP= blood pressure.
experimental meds placebo
(n=100) (n=100)

Mean BP 120.2(sd 15.4) 131.4(sd18.9)

High BP 14% 22%

Side effect 6% 8%

a)Test if there is a significant difference in mean BP between two groups using alpha=0.05.

b) Test if there is a significant difference in the proportion of high BP patients between groups using alpha=0.05.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    Volunteers who had developed a cold within the previous 24 hours were randomized to take either zinc or placebo lozenges every 2 to 3 hours until their cold symptoms were gone. Twenty-five participants took zinc lozenges, and 23 participants …
  2. biostatistics

    Suppose we want to design a new placebo-controlled trial to evaluate an experimental medication to increase lung capacity. The primary outcome is peak expiratory flow rate, a continuous variable measured in liters per minute. the primary …
  3. biostatistics

    8. The following data were collected in a clinical trial to compare a new drug to a placebo for its effectiveness in lowering total serum cholesterol. Generate a 95% confidence interval for the difference in mean total cholesterol …
  4. Psychology

    A psychologist is performing an experiment involving a controlled group and an experimental group. With the experimental group, the psychologist is giving a placebo and labeling it as caffeine pill. The control group receives a caffeine …
  5. Can someone help with this?

    A psychologist is performing an experiment involving a controlled group and an experimental group. With the experimental group, the psychologist is giving a placebo and labeling it as caffeine pill. The control group receives a caffeine …
  6. Statistic

    experimental Placebo (n=100) (n=100) Mean BP 120.2(15.4) (131.4(18.9) Hypertentive(%) 14 22 side effect (%) 6 8 Trial involve 200 subject,rendomally receiving either medication or placebo. The data collected at the end of trialafter …
  7. math statistics

    Marathon runners were randomly assigned to receive either vitamin C or a placebo. Separately, these treatments were also randomly assigned to a group of nonrunners the same age as the runners. All subjects were watched for 2 weeks …
  8. math statistics

    Marathon runners were randomly assigned to receive either vitamin C or a placebo. Separately, these treatments were also randomly assigned to a group of nonrunners the same age as the runners. All subjects were watched for 2 weeks …
  9. Statistics

    Given a study of 9804 overweight or obese subjects with preexisting cardiovascular disease and/or type 2 diabetes. Subjects randomly assigned to subitramine (4906 subjects) or a placebo (4898 subjects) in a double-blind fashion. Primary …
  10. Math

    The systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mm Hg and a standard deviation of 12 mm Hg. What percentage of 18-year-old women have a systolic blood pressure that is within 3 standard deviations …

More Similar Questions