What is the relative risk of a heart attack

Assignment Help Basic Statistics
Reference no: EM132137027

1) This table summarizes the results from along+termrandomized clinicaltrial to  determine whether aspirin reduces the risk of heart attack. Researchers  randomly assigned a large sample of healthy male physicians (22,071) to one of  two groups. One group took a low dose of aspirin (325 mg every other day). The  other group took a placebo. Here are the final results. 

Heart Attack 

No Heart Attack 

Totals 

Aspirin 

139 

10,898 

11,037 

Placebo 

239 

10,795 

11,034 

Totals 

378 

21,693 

22,071 

Research Question:

Does daily doses of aspirin lower the risk of a heart attack? 

(Hit, some of the questions to consider

a) How much lower is the risk of a heart attack for those who took aspirin in the study?  

b) What is the relative risk of a heart attack? 

c) What is the percent decrease in risk of a heart attack if someone took aspirin daily?)

Reference no: EM132137027

Questions Cloud

What is the probability that both david and valerie : a. What is the probability that both David and Valerie get picked for the Tahitian dance lesson?
Expand and construct the table adding columns : 1. Consider the following data on distances traveled by 60 people to visit the local amusement park.
Suppose x is a normal random variable : Suppose X is a normal random variable with mean µ = 54 and standard deviation s =8.? Compute P(X > 42). (Round to four decimal places.)
Binomial random variable : If x is a binomial random variable where n = 100 and p = 0.2, find the probability that x is less than or equal to 15 using the normal approximation
What is the relative risk of a heart attack : a) How much lower is the risk of a heart attack for those who took aspirin in the study? b) What is the relative risk of a heart attack?
What would be the diagnostically meaningful cutoff : If the mean score is 150 with a standard deviation of 30, what would be the diagnostically meaningful cutoff?
What is the probability that the combined weight : a. What is the probability that the combined weight of 100 randomly selected cars will exceed the maximum weight? How is this performed in R?
Find the? p-value and critical? value : Assume that the significance level is alpha equals a=0.05. Use the given statement and find the? P-value and critical? value(s).
What proportion of students scored outside : What proportion of students scored outside of the area between scores 66 and 86?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Explain critical region for certain test of hypothesis

Suppose that the critical region for a certain test of hypothesis is of the form T greater than or equal to 2.5 and the computed value of T from the data is -2.75.

  Pareto chart on renewable energy

The following table describes the estimated green power sales by renewable energy in 2008: Develop a bar chart, pie chart, and Pareto Chart.

  Discuss case-injections of arthritisfighting drug infliximab

Crohn's disease. In 2002 the medical journal The Lancet reported that 335 of 573 patients suffering from Crohn's disease responded positively to injections.

  Why do we need inferential statistics

This week dicussion topics are: Inferential Statistics, Confidence Interval for Population Mean, t-Distribution.

  Proportion of households connected to the internet

Technology and the Internet In its Millennium Development Goals Report, the United Nations suggested that by the end of 2013 there will be 6.8 billion.

  Female nonfarm wage and salary workers

Results for a 1997 survey of about 25,000 female nonfarm wage and salary workers were published in the Monthly Labor Review in 1998

  What is the probability that exactly 2 balls will be white

What is the probability that exactly 2 balls will be white? Calculate your answer rounded to three decimal places.

  In a large clinical trial of 500 patients treated

In a large clinical trial of 500 patients treated with a new drug, 40 reported sideeffects how many patients would need to be sampled to estimate the desired proportion to within a margin of error of 1%, using 98% confidence?

  Probability-picking bad computer from sample of computers

Suppose you receive a shipment of 33 computers, two of which are defective. What is the probability of picking a sample of 6 computers with exactly one bad computer in it? a girl is seated at each end of the row?

  If 400 fans who attended a college football game last week

suppose 80 of the college football fans root for the home team. if 400 fans who attended a college football game last

  Compute decision boundary for linear discriminant analysis

STA 141A Fall 2016 Homework. Compute the decision boundary for linear discriminant analysis, using Sepal.Length as the predictor variable. Compute the confusion matrix for the test data set

  Return on equity for similar stocks

The dividend is expected to grow at a 7% annual rate. The return on equity for similar stocks is 14%. What is P0? (Show workings)

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd