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A new non-invasive screening test is suggested that is claimed to be able to recognize patients with impaired glucose tolerance based on the battery of questions related to health behaviors. New test is given to 75 patients. Based on each patient's responses to questions they are categorised as positive or negative for impaired glucose tolerance. Each patient also submits the blood sample and their glucose tolerance status is determined. Results are tabulated below.
Screening Test Impaired Glucose Tolerance Not ImpairedPositive 17 13Negative 8 37
a) Determine the sensitivity of screening test?
b) Determine the false positive fraction of the screening test?
If one NBA player is selected at random, find the probability that this player is either 7 feet tall or weighs over 200 pounds.
Suppose you toss a die 100 times in a row. What is the probability that you see 4 spots between 10 and 20 times?
A study investigated the perception of corporate ethical values among individuals specializing in marketing. Using a=.05 and the following data (higher scores indicates higher ethical values) test for significant differences in perception among th..
FBI Report do greater universities that tend to have more property crime. Keep a scatter diagram also sketch the line you think best fits the data.
Using multiple linear regression, compute the regression equation for the following data in Excel.
Briefly state the evaluation criteria for using a computed regression equation; specifically, comment on the coefficient of determination, correlation coefficient, and standard error of the estimate.
Which of the 4 methods of data collection is involved when a person counts the number of cars passing designated location on the Los Angeles freeway system?
The heights of adults in one town have a mean of 66.3 inches and a standard deviation of 3.3 inches. What can you conclude from Chebychev's theorem about the percentage of adults in the town whose heights are between 59.7 and 72.9 inches..
What is the mean and standard deviation of the sampling distribution when we take all samples of size25?
Briefly identify and contrast the methods used by the psychoanalytic perspective, the humanistic perspective, and the trait perspective to assess personality.
A member of Congress wants to determine her popularity in a certain part of the state. She indicates that the proportion of voters who will vote for her must be estimated within plus or minus 2 percent of the population proportion.
The probability of recovery for a certain disease is 0.65 or 65%. If 50 people are stricken, what is the probability that
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