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A wildlife biologist is studying turtles that have been exposed to oil spills in the Gulf of Mexico. Previous studies have determined that a particular blood disorder occurs in turtles exposed for a length of time to oil at a rate of 1 in every 8 exposed turtles. The biologist examines 12 turtles exposed for a considerable period of time to oil. If the rate of occurrence of the blood disorder has not changed, what is the probability of each of the following events? She finds the disorder in:
a. none of the 12 turtles.b. at least 2 of the 12 turtles.c. no more than 4 turtles.
A soft-drink manufacturer claims that its 12-ounce cans do not contain, on average, more than 30 calories. A random sample of 16 cans of this soft drink, which were checked for calories
Now imagine repeating the survey many, many times, each time recording a different sample mean commute distance. In the long run, a histogram of these sample means represents?
Test out an suitable hypothesis also state your conclusion. Make sure the suitable assumption as well as conditions are satisfied before you proceed.
Develop a scatter diagram with price on the vertical axis and the size of the home on the horizontal. Does there seem to be a relationship between these variables? Is the relationship direct or inverse?
Write a program to simulate strategy. Have your program choose the initial payoff probabilities at random from the unit interval [0, 1], make 20 plays, and keep track of the number of wins. Repeat this experiment 1000 times and obtain the average ..
What is the probability that a randomly selected student is either Caucasian or Black?
the rate of return for na investment can be described by a normal distribution with mean 47 and standard deviation 3.
A company that has 200 employees chooses a committee of 15 to represent . When the committee is formed, none of the 56 minority employees are selected. if the committee is chosen randomly. What is the probability that it contains no minorities.
the average age of vehicles registered in the united states is 96 months. assume the population is normally distributed
If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he include in his new sample?
What is the probability the selected employee is a production worker? What is the probability the selected employee is either a production worker or a supervisor?
1.a study was conducted to explore the relation between alcohol consumption and hypertension. 7400 nurses were surveyed
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