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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 pharmaceutical company recieves large shipments of aspirin tablets. the acceptance smapling plan is to randomly
1. someone offers you a game of unbiased coin toss where you win 111 usd on tails and lose 85 usd on heads. what is the
For each of the following three scenarios, state which hypothesis test you would use from among the four introduced so far: the z test, the single-sample t test, the paired-samples t test, and the independent-samples t test.
Probability using Pareto chart - Evaluate the probability of randomly selecting an adult from the sample who doesn't always eat healthy foods because he or she has no time to cook or is confused about nutrition.
Interpret the regression coef?cient. Are subjects in the U.S. more willing to pay extra for non-biotech breakfast cereals than U.K. subjects, or are they less willing?
If the level of significance is 0.05, what is critical value to set up the decision rule to test the claim that the liberal arts students perform better than engineering students on average?
suppose that the mean value of interpupillary distance the distance between the pupils of the left and right eyes for
A baseball fan would like to estimate the mean time it takes to complete a major league baseball game. He randomly selects 40 game lengths (times to complete games) for major league baseball games and finds the mean to be 178 minutes with a standard ..
Write a 300-500 word essay and describe the following terms: Central Limit Theorem and its application. Confidence intervals using sample means and sample proportions
Whirltag claims that the useful lifetime of its dishwashers is normally distributed with a mean of 3 years and a standard deviation 1 year.
a painter has learned that the time it takes her to paint a random room in a house is normally distributed with a mean
An experiment consists of flipping the fair coin three times and noting the number of heads and tails. A random variable x is defined to be two times the number of heads plus the number of tails.
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