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1. The probability that a unit of blood was donated by a paid donor is .67. If the donor was paid, the probability of contracting serum hepatitis from the unit is .0144. If the donor was not paid, this probability is .0012. A patient receives a unit of blood. What is the probability of the patient's contracting serum hepatitis from this source?
2. Show that the impossible event is independent of every other event.
a presidential candidate plans to begin her campaign by visiting the capitals in 4 of 47 states. what is the
The weights of eggs produced on a farm are normally distributed with a mean of 1.4 ounces and a standard deviation of 0.4 ounces. How many 1200 eggs are within 2 standard deviations of the mean?
explain whether an experiment or an observational study would be more appropriate to investigate whether acupuncture
Critically discuss the relationship between a sample and the type of population it is taken from? What population factors should be taken into consideration?
suppose the average family of 4 washes 2000 lbs of laundry each year. assume the variable is normally distributed with
Average performance evaluation is higher for managers hired from outside firm compared with those promoted from within? What other stories does this graph tell?
Domestic Goats Follow Gaze Direction and Use Social Cues in An Object Choice Task," published online in Animal Behavior in January 2005
Assuming this finding to be based on a simple random sample of 800 Stooge fans who have a favorite Stooge, construct and interpret the 95% confidence interval for the population proportion whose favorite Stooge is Moe.
Iron in food cooked in iron pots. The data show that food cooked in iron pots has the highest iron content. They also suggest that the three types of food.
At 0.01 level of significance, is there evidence that mean price is higher at Whole Foods Market than at Fairyway supermarket? Interpret the meaning of p-value in (i).
describe the goal of an experimental research study and identify the two elements that are necessary for an experiement
Simulate 200 samples of size 60 from this population, and draw a histogram of the sample proportions who favor stronger gun control laws.
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