the average length of a hospital stay is 4.8 days. if we assume the lengths of...
Homework Answers
| mean μ= | 4.8 |
| standard deviation σ= | 1.4990 |
| for 90th percentile critical value of z= | 1.28 | ||
| therefore corresponding value=mean+z*std deviation= | 6.72 Days | ||
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average length of a hospital stay is 4.8 days. if we assume the
lengths of...
The standard deviation of the lengths of hospital stay on the intervention ward is 7.4 days....
The standard deviation of the lengths of hospital stay on the intervention ward is 7.4 days. Complete parts (a) through (c) below. a. For the variable "length of hospital stay," determine the sampling distribution of the sample mean for samples of 91 patients. The standard deviation of the sample mean is sigma Subscript x overbarequals 0.7757 days. (Round to four decimal places as needed.) b. The distribution of the length of hospital stay is right skewed. Does this invalidate your...
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...
Question Help The standard deviation of the lengths of hospital stay on the intervention ward is...
Question Help The standard deviation of the lengths of hospital stay on the intervention ward is 78 days. Come parts through (c) below a. For the variable length of hospital stay." determine the sampling distribution of the sample mear for samples of patients The standard deviation of the sample mean is days. (Round to four decimal places as needed.) b. The distribution of the length of hospital stayis right skewed Does this invalidate your result in part (a? Explain your...
Suppose we measure length of hospital stay (in days) for patients undergoing a particular surgical procedure....
Suppose we measure length of hospital stay (in days) for patients undergoing a particular surgical procedure. The mean is 3 days with a standard deviation of 3.2 days. (a) [10 points] If a sample of 35 patients is selected, what is the probability that their mean length of stay is less than 2 days? (b) [10 points] If a sample of 35 patients is selected, what is the probability that their mean length of stay is more than 5 days?
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...
Consider a large hospital that wants to estimate the average length of stay of its patients....
Consider a large hospital that wants to estimate the average length of stay of its patients. The hospital randomly samples n = 100 of its patients and finds that the sample mean length of stay is 4.5 days. Assume that the standard deviation of the length of stay for all hospital patients is 4 days. Find a 95% confident interval for true mean length of all hospital patients. O (3.84.5.16) O (3.72,5.28)
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)
5. The management of Recover Fast Hospital (RFH) claims that the average length of stay in...
5. The management of Recover Fast Hospital (RFH) claims that the average length of stay in their hospital after a major surgery is less than the average length of stay at General Hospital (GH). Independent random samples were selected and the following statistics were calculated. Sample size Mean (in days) Standard deviation (a) RFH 45 0.6 0.5 GH 58 4.9 0.6 (1POINT) Formulate the hypotheses но. mu1-mu2 a mu1<mu2 Compute the test statistic Using the p-value approach, determine if the...
Name: Wit: SAMPLING DISTRIBUTION EXERCISE The average length of a hospital stay in general or community...
Name: Wit: SAMPLING DISTRIBUTION EXERCISE The average length of a hospital stay in general or community hospitals in the United States is 6 days Assume that the population standard deviation is 7.7 days. A simple random sample of 49 patients is drawn from this population. 1. What is the sampling distribution of the sample mean? 2. What is the probability that the average length of stay for this group of patients will be no more thana week? 3. What is...
If the variance of the length of stay of a patient in a hospital is 25...
If the variance of the length of stay of a patient in a hospital is 25 days, the standard deviation is how many 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...
Question Help The standard deviation of the lengths of hospital stay on the intervention ward is 78 days. Come parts through (c) below a. For the variable length of hospital stay." determine the sampling distribution of the sample mear for samples of patients The standard deviation of the sample mean is days. (Round to four decimal places as needed.) b. The distribution of the length of hospital stayis right skewed Does this invalidate your result in part (a? Explain your...
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...
Consider a large hospital that wants to estimate the average length of stay of its patients. The hospital randomly samples n = 100 of its patients and finds that the sample mean length of stay is 4.5 days. Assume that the standard deviation of the length of stay for all hospital patients is 4 days. Find a 95% confident interval for true mean length of all hospital patients. O (3.84.5.16) O (3.72,5.28)
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)
5. The management of Recover Fast Hospital (RFH) claims that the average length of stay in their hospital after a major surgery is less than the average length of stay at General Hospital (GH). Independent random samples were selected and the following statistics were calculated. Sample size Mean (in days) Standard deviation (a) RFH 45 0.6 0.5 GH 58 4.9 0.6 (1POINT) Formulate the hypotheses но. mu1-mu2 a mu1<mu2 Compute the test statistic Using the p-value approach, determine if the...
Name: Wit: SAMPLING DISTRIBUTION EXERCISE The average length of a hospital stay in general or community hospitals in the United States is 6 days Assume that the population standard deviation is 7.7 days. A simple random sample of 49 patients is drawn from this population. 1. What is the sampling distribution of the sample mean? 2. What is the probability that the average length of stay for this group of patients will be no more thana week? 3. What is...
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