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A certain protein is present in everyones saliva, but Covid 19 increases its concentration. An instant test is develeped based on this measuring this protein: For people without covid 19, the protein has a concentration with a mean of 9 units/ml, and a standard deviation of 3 units/ml. For people with covid 19 the protein has a concentration 23 units/ml and standard deviation of 2 unit/ml Suppose we set a cutoff value of the test at 19 units/ml. So above 19 units/ml they are considered to have covid 19, and below 19 units they are not.
Assuming the two distributions are normal:
a) What is the probability of falsely labelling a healthy person as having covid 19?
b) What is the probability of correctly saying a person does have covid 19 when they do?
Recognize and examine the research question which applies to your organization. Create a 350- to 700-word milestone. Select the organization with which your team is familiar.
What does the shot noise on the power line look like? - Sketch a possible member function of the shot noise process.
for a one-tailed hypothesis test the critical z-value of the test statistic is -2.33. which of the following is true
Using the data from the previous exercise, repeat the calculations by applying the deviation score method; however, assume that the data are for a finite population.
What does the y-intercept represent in terms of linear analysis (and linear regression analysis) and give an example of how it can no significance in a problem?
Heart rate during laughter. Laughter is often called ‘‘the best medicine,'' since studies have shown that laughter can reduce muscle tension and increase.
major league baseball mlb uses a best of 7 series to determine the winner for the finals the winner must win 4 games.
Is there sufficient statistical evidence at the 10% significance level to conclude that the churn rate in the telecommunications industry exceeds 15%? Perform a hypothesis test for a single proportion and report the findings.
In one law school class the entering students averaged 700 on the LSAT test with a standard de-viation of 40. Assuming the distribution of test scores.
In March 1994, California instituted a "three strikes and you're out" policy that requires a mandatory 25-years-to-life sentence for any criminal convicted.
a tennis player has a 68 percent succes rate on first serves and migt serve 85 times in a match. assuming that each
Describe the Spanish treatment of California Indians -- those Indians who came to be known as the "Mission Indians." Include something about the Indians'
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