Question
In: Statistics and Probability
The mean number of daily surgeries at a local hospital is 6.2. Assume that surgeries are...
The mean number of daily surgeries at a local hospital is 6.2.
Assume that surgeries are random, independent events.
(a) The count of daily surgeries follows approximately:
A Poisson distribution with mean 6.2 and standard deviation 2.49.
A binomial distribution with mean 6.2 and standard deviation 3.8.
A binomial distribution with mean 6.2 and standard deviation 1.76.
A Poisson distribution with mean 6.2 and standard deviation 6.2.
A binomial distribution with mean 6.2 and standard deviation 3.1.
(b) The probability that there would be only 2 or fewer surgeries
in a given day is approximately (round to 4 decimal places):
Solutions
orchestra answered 2 years agoRelated Solutions
A local hospital collects monthly data on the number of infections after surgeries. These data are...
A local hospital collects monthly data on the number of
infections after surgeries. These data are shown below:
209
225
201
236
220
244
247
245
250
227
234
227
213
212
193
182
242
230
188
252
201
226
222
212
219
223
191
222
231
239
217
241
220
278
255
225
208
225
227
203
Calculate the sample average
Calculate the sample standard deviation
A local hospital collects monthly data on the number of infections after surgeries. These data are...
A local hospital collects monthly data on the number of
infections after surgeries. These data are shown below:
209
225
201
236
220
244
247
245
250
227
234
227
213
212
193
182
242
230
188
252
201
226
222
212
219
223
191
222
231
239
217
241
220
278
255
225
208
225
227
203
Determine the range
State the data required for the construction of a box plot for
these dat
A local hospital collects monthly data on the number of infections after surgeries. These data are...
A local hospital collects monthly data on the number of
infections after surgeries. These data are shown
below:
208
225
202
236
220
244
247
245
250
227
234
227
213
212
183
182
242
230
187
252
201
226
222
212
219
223
191
222
231
239
217
241
220
278
255
225
208
225
227
202
A. Calculate the sample average
B. Calculate the sample standard deviation
C. Construct a stem-and-leaf plot for these
data.
D. Construct a...
The mean weight of 50% newborn babies selected from 60 randomly at a local hospital. Assume...
The mean weight of 50% newborn babies selected from 60 randomly
at a local hospital. Assume the weight of newborn babies has
approximately normal distribution. a. Find the Critical Value 99%
for the mean weight of all newborn babies at this hospital. b. Find
the Margin of Error for the 99% confidence interval all newborn
babies at this hospital. c. Find a 99% Confidence Interval for the
mean weight of all newborn babies at this hospital.
A hospital does many surgeries in a day. A standard hospital is open 24 hours with...
A hospital does many surgeries in a day. A standard hospital is
open 24 hours with no breaks in a day. In examining patient flow
and surgery process in a 2 hour period. Let us assume a long lineup
of over 1000 people waiting for surgery. Surgery involves the
following steps:
A. Check driver's licence, 60s on average exponential
distribution.
B. Talk with patient about preexisting health problems, which is
90s.
C. Doing the surgery, which takes 180s or 3...
At a local hospital, the number of hip implants that fail is approximately 10. This number...
At a local hospital, the number of hip implants that fail is
approximately 10. This number is even higher for women. A new
implant design by researchers uses a thinner plastic and will
hopefully cause fewer complications and hence reduce the number of
additional sugeries. A long-term study was conducted at the
hospital to examine the number of failures in men using the new
implant design.
a) State the null and alternative hypotheses. Write '≤' as
'<=' and '≥' as...
The number of heart surgeries performed at Heartville General Hospital has increased steadily over the past several years.
The number of heart surgeries performed at Heartville General Hospital has increased steadily over the past several years. The hospital's administration is seeking the best method to forecast the demand for such surgeries in year 6. The data for the past five years are shown below. Year12345Demand4447545761The hospital's administration is considering the following forecasting methods. Begin error measurement in year 3, so all methods are compared for the same years i. Exponential smoothing, with a 0.6. Let the initial forecast for year...
assume that you would like to compare the mean number of hospital visits per person per...
assume that you would like to compare
the mean number of hospital visits per person per year between
Texas and California. Specifically you would like to
test if Texans have a different mean number of visitations per year
per person than Californians. In order to do this, you
take a random sample of 29 Texans and 24 Californians and ask each
of them how many times they visited the Emergency room last
year. The average number of visits for the Texans was
1.158...
Assume that a hospital is a profit maximizing firm and is a local monopoly. It accepts...
Assume that a hospital is a profit maximizing firm and is a
local monopoly. It accepts a mix of privately insured and public
patients (i.e. patients who are in public insurance programs such
as Medicare and Medicaid). The private sector faces a downward
sloping demand curve, and the public sector faces a fixed regulated
government price.
Suppose government changes its policy to reduce the
reimbursement (i.e. the government price) to hospitals.
Use the economic model of price discrimination to show...
The administrators for a local hospital wish to estimate the average number of days required for...
The administrators for a local hospital wish to estimate the
average number of days required for in-patient between the ages of
25 and 34. A random sample of 40 patients between these ages
produced a sample mean and a sample standard equal to 5.4 and 3.1
days, respectively.
a) What is the best point estimate for the mean length of stay
for the population of patients from which the sample was drawn?
b) Calculate the estimated standard error of the...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Describe the principles and operations of movement sensors: Doppler-Effect Velocity sensor and Spring-Mass Accelerometor; State the...
- This is all one question, thank you so much in advance. The Bigbee Bottling Company is...
- For Questions 1-3: consider the following code: public class A { private int number; protected String...
- You are tasked with assessing the health department’s intervention program in preventing recurrence of acute alcohol...
- Compare the MOSFET, JFET , and BJT and identify the reasons these devices behave differently. What...
- How would you use SAS Enterprise Miner to create a neural network model of your example?
- Explain the use of neural networking modeling in predictive analytics.
ADVERTISEMENT