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Probability : Standard DeviationSuppose the national average for medication error is one out of every 1000 patients. A hospital believes that their medication error rate is comparable to the national average. If the hospital randomly selects 500 patients,a. Find the expected number of patients in the sample that will have had a medication error.b. What is the standard deviation of the number of patients in the sample that will have had a medication error?c. What is the probability of observing one or more patients who have had medication errors in the same sample?d. What is the probability of observing two or more patients who have had medication errors in the same sample?e. If you observed three patients who have had medication errors in the sample, would you believe that he hospital's medication error rate was comparable to the national average? Give reasons for your conclusions.
Applications of quadratic equations: Maxima and minima - Based on this model when did the percent of people in this income level reach its minimum? You do not have to graph the function.
Trigonometric function to estimate the exact value.
Hypothesis test for regression
Information about "Poisson Distribution". During cross country pipeline construction, day production rates of more than 120 girth welds are not unusual. On pipe laying barges operating around the clock,
Calculating The Probability For a Normal Random Variable. The ages of 50 women are approximately normally distributed with a mean of 48 years and a standard deviation of 5 years. One women is randomly selected from the group, and her age is observ..
The probability that both defective lights will be found. A box contains two defective Christmas tree lights that have been inadvertently mixed with eight non-defective lights. If the lights are selected one at a time without replacement and teste..
Assume that the average annual salary for a worker in the United States is $28,500 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $6,250. Find the following
Probability and Data Collection, 1. Suppose you have 4 nickels, 6 dimes, and 4 quarters in your pocket. If you draw a coin randomly from your pocket, what is the probability that
The first or second derivative test to show that the critical value is a relative maxima or minima.
What percentage of the Indians like oranges and apples and A market research group conducted a survey of 1000 consumers and reported that 720 consumers liked product A and 450 liked product B. What is the least number that must have liked both prod..
Find the directrix, focus and roots of the parabola from the given data and sketching the graph of given equation
Probability & Statistics Questions. A machine produces 12,000 bolts per day, with a 3% defect rate. What is the probability that twelve defective bolts will be found in a sample of 600 bolts?
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