Homework Answers
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2. A study of Pennsylvania hospitals showed that the mean patient length of stay in 2001...
A study of Pennsylvania hospitals showed that the mean patient length of stay in 2001 was...
A study of Pennsylvania hospitals showed that the mean patient length of stay in 2001 was 4.87 days, with a standard deviation of 0.97 day. Assume that the distribution of patient length of stays is normal. Question 2 (4 points) What is the probability that a randomly selected patient has a length of stay less than 6 days? 0.9732 0.0268 0.8780 O 0.9941 0.1220 0.0059 0.9861 0.0139
Problem 4 The length of maternity stay in U.S. hospitals is normally distributed, with mean of...
Problem 4 The length of maternity stay in U.S. hospitals is normally distributed, with mean of 2.6 days and a standard deviation of 0.5 days. We randomly survey 89 women who recently bore children in U.S. hospitals. Let X = maternity stay in U.S. hospital, and X = average maternity stay for a sample of size 89 a. X (pick one) ) b. X (pick one) . с. What is the probability that the average stay is more than 3...
A random sample of 500 measurements on the length of stay in hospitals had sample mean...
A random sample of 500 measurements on the length of stay in hospitals had sample mean 7.3 days and sample standard deviation 3.3 days. A federal regulatory agency hypothesizes that the average length of stay is in excess of 7 days. Use α = 0.05. Using the rejection region from a test to determine whether the data supports the regulators claim, calculate β when μa = 7.4. (Round your answer to four decimal places.)
The length of maternity stay in U.S. hospitals is normally distributed, with mean of 3.5 days...
The length of maternity stay in U.S. hospitals is normally distributed, with mean of 3.5 days and a standard deviation of 0.5 days. We randomly survey 62 women who recently bore children in U.S. hospitals. Let Xmaternity stay in U.S. hospital, and Xaverage maternity stay for a sample of size 62 a. (30) Xickone) .) b. (.30) X ~ (pick one) . (.40) Which of the following is more likely? Oan individual stays more than 5 days the average stay...
Problem 3 The length of matermity stay in US. hospitals is normally distributed. with mean of...
Problem 3 The length of matermity stay in US. hospitals is normally distributed. with mean of 2.5 days and a standard deviation of 1.2 days. survey 68 women who recently bore children in U.S, hospitals Let X maternity stay in U.S. hospital, and X average maternity stay for a sample of size 68 a (30) X pick one) b. (30) x ~ | (pick one" l ( c (40) Which of the following is more likely? O an individual stays...
Problem 2: The average length of a hospital stay in general or community hospitals in the...
Problem 2: The average length of a hospital stay in general or community hospitals in the United States is 5.5 days. Assuming a population standard deviation of 2.5 days and a simple random sample of 50 patients, what is the probability that the average length of stay for this group of patients will be no more than 6.5 days? (40 points)
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of 15 days
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 309 days or longer. b. If the length of pregnancy is in the lowest 2%, then the baby is premature. Find the length that separates premature babies from those who are not premature. a. The probability that a pregnancy will last 309 days or longer is _______ (Round to four decimal places as...
EQuestion Help The lengths of pregnancies are normally distributed with a mean of 267 days and...
EQuestion Help The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 309 days or longer b. If the length of pregnancy is in the lowest 4%, then the baby is premature. Find the length that separates premature babies tom those who are a. The probability that a pregnancy will last 309 days or longer is (Round to four decimal places as...
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard...
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 308 days or longer. b. If the length of pregnancy is in the lowest 4%, then the baby is premature. Find the length that separates premature babies from those who are not premature. Click to view page 1 of the table. Click to view page 2 of the table. a. The probability...
6.3.27 Assigned Media Question Help The lengths of pregnancies are normally distributed with a mean of...
6.3.27 Assigned Media Question Help The lengths of pregnancies are normally distributed with a mean of 270 days and a standard deviation of 15 days a. Find the probability of a pregnancy lasting 309 days or longer be the length of pregracy is in the lowest then the baby is premature. Find the length that separates premature babies from those who are not premature Click to view of the table. Click to the table The probability that a pregnancy will...
A study of Pennsylvania hospitals showed that the mean patient length of stay in 2001 was 4.87 days, with a standard deviation of 0.97 day. Assume that the distribution of patient length of stays is normal. Question 2 (4 points) What is the probability that a randomly selected patient has a length of stay less than 6 days? 0.9732 0.0268 0.8780 O 0.9941 0.1220 0.0059 0.9861 0.0139
Problem 4 The length of maternity stay in U.S. hospitals is normally distributed, with mean of 2.6 days and a standard deviation of 0.5 days. We randomly survey 89 women who recently bore children in U.S. hospitals. Let X = maternity stay in U.S. hospital, and X = average maternity stay for a sample of size 89 a. X (pick one) ) b. X (pick one) . с. What is the probability that the average stay is more than 3...
The length of maternity stay in U.S. hospitals is normally distributed, with mean of 3.5 days and a standard deviation of 0.5 days. We randomly survey 62 women who recently bore children in U.S. hospitals. Let Xmaternity stay in U.S. hospital, and Xaverage maternity stay for a sample of size 62 a. (30) Xickone) .) b. (.30) X ~ (pick one) . (.40) Which of the following is more likely? Oan individual stays more than 5 days the average stay...
Problem 3 The length of matermity stay in US. hospitals is normally distributed. with mean of 2.5 days and a standard deviation of 1.2 days. survey 68 women who recently bore children in U.S, hospitals Let X maternity stay in U.S. hospital, and X average maternity stay for a sample of size 68 a (30) X pick one) b. (30) x ~ | (pick one" l ( c (40) Which of the following is more likely? O an individual stays...
Problem 2: The average length of a hospital stay in general or community hospitals in the United States is 5.5 days. Assuming a population standard deviation of 2.5 days and a simple random sample of 50 patients, what is the probability that the average length of stay for this group of patients will be no more than 6.5 days? (40 points)
EQuestion Help The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 309 days or longer b. If the length of pregnancy is in the lowest 4%, then the baby is premature. Find the length that separates premature babies tom those who are a. The probability that a pregnancy will last 309 days or longer is (Round to four decimal places as...
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of 15 days. a. Find the probability of a pregnancy lasting 308 days or longer. b. If the length of pregnancy is in the lowest 4%, then the baby is premature. Find the length that separates premature babies from those who are not premature. Click to view page 1 of the table. Click to view page 2 of the table. a. The probability...
6.3.27 Assigned Media Question Help The lengths of pregnancies are normally distributed with a mean of 270 days and a standard deviation of 15 days a. Find the probability of a pregnancy lasting 309 days or longer be the length of pregracy is in the lowest then the baby is premature. Find the length that separates premature babies from those who are not premature Click to view of the table. Click to the table The probability that a pregnancy will...
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