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Suppose a clinical trial is conducted to test the efficacy of a drug A for treating gonorrhea in females. 100 female patients with gonorrhea are given this drug and are seen 2 weeks later, at which time 10 of the 100 patients still have gonorrhea. The best point estimate for p, the probability of a failure with the drug A is 10%.
What's the standard error of the point estimate?
Test the claim that the mean weight of Columbia River salmon is greater than 23 pounds. Use a a = 0.10 significance level.
Based on benchmarking with comparable facilities in similar metropolitan areas, is it feasible currently to achieve a C-section rate of 10%?
a company that produces a particular machine component has 3 factories one each in buffalo detroit and pittsburgh. 27
A magazine article stated that the average age of women who are getting married for the first time is 26 years. A researcher decided to test this hypothesis at α = .02. She selected a sample of 25 women who were recently married for the first time..
These questions belong to Basic Statistics and discuss about two multiple choice questions. The first question is about the appropriate use when testing hypothesis for studying groups. The second question is about computation of location of signif..
Compute the sample correlation coefficient, and use this value to describe the linear relationship.- Find the estimated regression line. Conduct an F test for a significant regression.
A researcher is testing the effect of a new cold and flu medication on reaction time. A sample of n = 9 students is obtained and each student is given the normal dose of the medicine.
A random sample of 400 college students was selected and 120 of them had at least one motor vehicle accident in the previous two years. A random sample of 600 young adults not enrolled in college was selected and 150 of them had at least one motor..
Use hypothesis test analysis to validate or dispute the claim? At 10% significant level and make a recommendation to the management.
In how many ways can a first prize, a second prize and four identical third prizes be awarded to a group of 15 people?
1. Define Variability and identify two purposes a good measure of variability serves:
Compute the expected value of perfect information. Do you think it would be worth trying to obtain additional information concerning which scenario is likely to occur?
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