An article reported that patients under care for HIV have CD4 tests every 3 months on average, with a standard deviation of 1.5 months. Assume that the distribution of time between tests is normal. (a) What is the probability that a randomly selected patient under care for HIV waits between 2 and 3 months to have a CD4 test? The probability that a randomly selected patient under care for HIV waits between 2 and 3 months to have a CD4 test is ........ (b) What is the probability that a randomly selected group of 20 patients under care for HIV have a mean wait time of greater than 2.5 months to have CD4 tests? The probability that a randomly selected group of 20 patients under care for HIV have a mean wait time of greater than 2.5 months to have CD4 tests is ..........
An article reported that patients under care for HIV have CD4 tests every 3 months on average, with a standard deviation of 1.5 months. Assume that the distribution of time between tests is normal.
(a) What is the
The probability that a randomly selected patient under care for HIV waits between 2 and 3 months to have a CD4 test is ........
(b) What is the probability that a randomly selected group of 20 patients under care for HIV have a
The probability that a randomly selected group of 20 patients under care for HIV have a mean wait time of greater than 2.5 months to have CD4 tests is ..........
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