Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A study done by the Ohio State University Medical Center examined whether or not taking an aspirin a day would help colon cancer patients reduce the chance of getting subsequent colon polyps. 635 patients with colon cancer participated; 317 of them were randomly assigned to the aspirin group, and the other 318 patients were assigned to a placebo (non-aspirin) group. 54 patients in the aspirin group developed subsequent polyps, compared to 86 patients in the non-aspirin group. In this study, all other outside factors (sex of the person, age, etc.) were controlled. A 95% confidence interval on the difference in proportions of the two groups [aspirin group (p1) minus non-aspirin group (p2)] was found to be -0.164 < p1 - p2 < -0.036. Which of the following interpretations of this confidence interval is most appropriate?
A.With 95% confidence, there is no statistically significant difference in the proportion of patients who developed polyps. Taking an aspirin a day is not effective in reducing the chance of developing subsequent polyps.
B.With 95% confidence, there is a statistically significant difference in the proportion of patients who developed polyps. Taking an aspirin a day appears to be effective in reducing the chance of developing subsequent polyps.
C.With 95% confidence we can say that taking an aspirin a day does not help.
Determine the expected value of the number guessed by the caller.
Examine statistical data consisting of records of car accidents on Victorian roads and freeways in 2012
1. a researcher studying the effects of environment on mood asks participants to sit alone in a waiting room for 15nbsp
Given a business situation word problem or case study such as one dealing with processing time or quantity of fill, use the normal probability distribution to determine a course of action.
1. Do this exercise by hand. A famous brand-name manufacturer wants to know whether people prefer Nibbles or Wribbles. They sample each type of cracker and indicate their like or dislike on a scale from 1 to 10. Which do they like the most?
A dean of college of business in the Midwest claims
What is the probability that the two selected candies are the same flavour?
What is the total cost to produce the disks for the year? All workers will be fully utilized each quarter, in other words, there is no under utilization.
an investigator wants to assess whether smoking is a risk factor for pancreatic cancer. electronic medical records at a
What statistical method can you apply using this data?
How to calculate the sample size? i want to know the needs and wants of the people who buy some products in the asian supermarkets in the netherlands, so i decide to make interview with them , but firstly i need to calculate how many people s..
Analyze the processed data in Statistical survey.
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd