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!
Question: Treatment of Diarrhea A research group compared probiotics with antibiotics to know the best way to treat diarrhea. It showed that consumption of probiotics was a better way to cure diarrhea than antibiotics.
a. What do you need to know to decide whether this was an observational study or a controlled experiment?
b. Why do controlled experiments with randomization allow us to draw conclusions implying cause and effect?
Create a 95% confidence interval for the difference in the proportions of senior men and women who have this disease.
A single plant operates three galvanizing lines that are assumed to operate independently. What is the probability that none of the lines experiences a surface finish problem in 40 hours of operation.
a group of 14 friends got together for a wine contest. each guest brought his or her favorite bottle of pinot noir.
the utility company in a large metropolitan area finds that 70 of its customers pay a given monthly bill in full.a.
Two construction contracts are to be randomly assigned to one or more of three firms: I, II, and III. Any firm may receive both contracts. If each contract will yield a profit of $90,000 for the firm, find the expected profit for firm I. If firms ..
If the contract does not carry the secondary guarantee of part (a), what is the minimum premium that the policyholder will have to pay at time 20 to ensure that the cost of insurance can be paid.
Manufacturing and Product Development The National Fire Protection Association maintains an extensive list of codes and standards that address equipment.
Cars currently sold in the United States have an average of 135 horsepower, with a standard deviation of 40 horsepower. What's the z-score for a car with 195 horsepower?
a list of 50 subjects is entered into a computer file and then sorted by last name. the subjects are assigned to five
Significant increase in the mortality of lung cancer in both genders, but no significant effect was observed at lower levels." Is this an observational study or an experiment? Fully explain your reasoning.
To better understand eating patterns that might contribute to obesity, a researcher measures the average number of calories (per meal) consumed by shift worker.
What would that evaluation be and what is the margin of error?
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