Question True or False and short explantationA) The r2 coefficient is just the correlation coefficient r times itself B) A t- distribution is the same as a normal distribution, except it has less probability in the tails C) For any discrete probability distribution, we can find the expected value by multiplying np. Looking for […]
Question Patients who are recovering from pneumonia normally take a mean (average) of 4.75 days to leave the hospital, with a population standard deviation of 1.82 days. Medical personnel at a hospital are trying a new medication that is designed to ease breathing during recovery. What is not currently known is whether the new medication will impact duration of hospital stay. […]
Question 1. Suppose the birth weight in a local community is approximately normal with µ=7.8 lbs and the σ=1.9 lbs . a. What is the 10th percentile of the birth weight? b. What is the probability of finding a new born weighing at least more than 7 lbs? c. What proportion of newborns will have their birth weight to […]
Question 1. Researchers are interested in updating the average survival time of breast cancer patients. Current national data claims a 5.1 year average survival time for breast cancer patients. . After treatment analysis of a new drug for breast cancer, based on 1000 patients, the research team calculates that the average survival time is 7.8 years. […]
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