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Q1) Hospital emergency room (ER) is presently organized so that all patients register through initial check-in process. At his or her turn, each patient is seen by doctor and then exits process, either with prescription or with admission to hospital. Presently, 50 people per hour arrive at ER, 10% of whom are admitted to hospital. On average, 30 people are waiting to be registered and 40 are registered and waiting to see doctor. Registration process takes, on average, 2 minutes per patient. Among patients who get prescriptions, average time spent with doctor is 5 minutes. Among those admitted to hospital, average time is 30 minutes. On average, how long does patient stay in ER? On average, how many patients are being examined by doctors? On average, how many patients are in ER?
A random-effects ANOVA refers to the analysis where the levels included in the study represent a random sample of all levels that exist.
Create a 98 percent confidence interval for the population mean.
At the 0.05 significance level, can Ms. Bridgend conclude that she is earning an average of more than $20 in tips?
Depends on the satellite information illustrate what is the expected number µ of real forest fires on the Seward Peninsula.
Four young children were monitored closely over a period of several weeks to measure how much they watched violent television programs and their amount of violent behavior toward their playmates.
Gigi has rolled a natural on four straight tosses of the dice. This excites the gamblers standing around the table.
Probability using Z-score.Find the probabilities that a random variable Z having a standard normal distribution will take on a value.
Prepare a mixed integer programming model for this problem.
Use the following data to write the normal equations of the linear regression between Y and X, and find the least squares regression.
Determine the distributions given below represent a probability distribution. Justify your answer.
Find a 90% confidence interval for the population mean weight of all such turtles.
Calculate the test statistic. Determine the p-value of the test-statistic.
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