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!
8. John Lister (for whom Listerine is named) was a British physician who was pioneer in reducing deaths of surgical patients from infections. He suspected that bacteria were involved in transmitting infection, so he tried using carbolic acid as an operating room disinfectant. In 75 amputations, he used carbolic acid 40 times. He did not use carbolic acid during the other 35 amputations. With the exception of the use of carbolic acid for 40 amputations, all other conditions in the operating room were the same for all 75 amputations.a. Explain why this study is an experiment. b. What else would need to be done to make this a randomized experiment? Explain how randomization could be accomplished.c. What is the null hypothesis that Dr. Lister should have tested? What alternative hypothesis should he have considered?d. Assume that randomization was carried out as you described in part (b) and 40 patients were randomly assigned to have their amputation done using carbolic acid as a disinfectant and the other 35 had their amputation done with no disinfectant. Dr. Lister recorded that of the 40 amputations performed using carbolic acid, 34 patients lived. Of the 35 amputations done without using carbolic acid, 19 patients lived. What conclusion could Dr. Lister make from these results? Perform the appropriate hypothesis test, check if appropriate conditions are met, report a value of the test statistic, report a p-value, and state your conclusion. Use a .05 level of significance. Is a cause and effect conclusion justified?
Find the probability that 3 or 4 of the batches will be rejected in the next shift and find the expected number and the standard deviation of batches rejected.
The number of power outages at a golf course has a Poisson distribution with a mean of 7 outages per year. the probability that there will be between 1 and 2 inclusive power outages in a year is?
What is Euthyphro's second definition of piety?
A furniture cabinet maker produces two types of cabinets that house and hide plasma televisions.
One conclusion you might reach (hint) after completing the readings for this assignment is that there are no bad designs, only bad design choices (and implementations). State a research question for which a single-group post-test only design ca..
part i introduction this section should include some perspective about the problem you are trying to analyze in other
1) A coin is flipped 14 times. Use the normal approximation to the binomial distribution to calculate the probability of a total of 4,5, or 6 heads. Compare this to the binomial probability.
A Gallup Poll used telephone interviews to survey a sample of 1025 U.S. residents over the age of 18 regarding their use of credit cards. The poll reported that 76% of Americans said that they had at least one credit card. Give the 95% margin of erro..
What are some ways in which we as researchers can present our data and our findings in a way that can be understood my managers, employees and other stakeholders?
Purpose: One of the objectives of this class is to make students better consumers of the information they are presented with. Knowing how to interpret poll results is an important step in determining validity of studies you will assess in you..
The National Association of Colleges and Employer
A large playlist consists of songs with times which have mean 2 minutes ten seconds and standard deviation 15 seconds.
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