Correlated groups and the t-test for single samples
How is the t-test for correlated groups and the t-test for single samples similar and dissimilar?
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A division within a transportation company is responsible for performing maintenance on the fleet of trucks used by the company. Trucks in need of repair arrive to the maintenance division according to a Poisson process having a rate of 0.3 trucks
Suppose we obtained data on vein size after application of a nitroglycerin ointment in a sample of 50 patients. The mean vein size is found to be 7.8mm with an SD of 2.1.
In the past the standard deviation of weights of certain 32.0-oz packages filled by a machine was 0.25 oz. A random sample of 20 packages showed a standard deviation of 0.35 oz. Is the apparent increase in variability significant at the 0.10 level
Let X1 and X2 be observations of a random sample size of n=2 from a distribution with p.m.f. F(x)= x/6, x=1,2,3. Then find the p.m.f. of Y= X1+ X2. Determine the mean and the variance of the sum in two ways.
Suppose that you are trying to estimate average IQ and its standard deviation. You know that IQs are distributed normally, and so you choose 6 random people and test their IQs. You obtain the values 97, 103, 91, 117, 126, 108. Write the MLE functi
Suppose that the lengths of the slots are normally distributed with a mean of 1002.5 mm and a standard deviation of .4 mm. What proportion of the time wil lfour randomly selected components be able to fit into the slot?
College students average 8.6 hours of sleep per night with a standard deviation of 35 minutes. If the amount of sleep is normally distributed, what proportion of college students sleep for more than 9.7 hours?
What is the expected number of guests that might turn up at your party, and its standard deviation? What ishe probability the number of guests is between 70 and 80?
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A primigravida arrives at the observation unit of the maternity unit because she thinks she is in labor. The nurse applies the external fal heart monitor
The nurse is performing a newborn assessment. Which symptom, if present in a newborn: A Abdominal breathing with synchronous chest movement
Nurses on a medical-surgical unit are reluctant to suggest any changes at a staff meeting as to how policies and procedures are implemented
During a routine prenatal health assessment for a client in her third trimester, the client reports that she had fund leakage on her way to the appointment.
When she finished setting up the sterile field for a bedside procedure, the HCW notes that there are several tiny holes (< 1 mm in diameter) in the table drape.
A woman in her third trimester of pregnancy has been in active labor for the past & hose findings and electronic fetal monitoring (EFM)
Question: The nurse leader has assembled a team to develop a plan to decrease the number of clients falls on the unit.