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Suppose that 1% of a clinic's patients are known to have Lyme disease. A test is developed that is positive in 99% of patients with Lyme disease, but it is also positive in 3% of patients who do not have the disease. A patient is chosen at random from the clinic. What is the probability that the patient's test comes out positive for Lyme disease?
Perform a test to determine whether there is sufficient evidence to support a claim of a linear correlation between two variables. Find the critical values of r given the number of pairs of data n and the significance level alpha.
If the selected coin is flipped twice and comes up heads twice in a row, what is the probability that the coin is two-headed?
Use the Internet or other resources to collect both primary and secondary data regarding the research issue, opportunity, or problem you selected for your Research Process Outline during Week Two.
To determine whether there exists mean difference among the groups:
It was reported that 20 readers responded and 87% said "no" while 13% said "yes." Recognize 4 major flaws in this survey.
Suppose you bid $12000. What is the probability that your bid will be accepted?
Find the probability that student A made no mistakes when entering a randomly selected form. Find the probability that student B made no mistakes when entering a randomly selected form.
A college class believes that the average grade average of psychology students and the average grade averages of biology students are different.
How does hypothesis testing contribute to the scientific knowledge base? What is one example of a null hypothesis statement?
Suppose the assembly times follow normal distribution. Find out z values for 29 and 34 hours. What percent of garages take between 32 hours and 34 hours to erect?
a sample standard deviation of 1.1%. Using alpha = 0.05, does the analyst have statistical evidence to reject the claim made by the magazine?
Estimated the probability that among 75 randomly selected students, at least 20 of them score greater than 78.
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