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During the fishing opener the weight of a walleye caught was random. The weight of a walleye is uniformly distributed from 1 to 15 pounds.
a) what is the weight of a "typical" walleye (the mean of the distribution)?
b) what is the probability that a walleye will weigh less than 4 pounds?
c) what is the probability a walleye will weigh between 7 and 14 pounds?
National average for 2-year leases is 30,000 miles. Select the suitable hypothesis.
the professor plots a histogram of these several proportions. Should a Normal model be used to represent the sampling distribution of the proportion of tails?
Find out a plausible value r for correlation between vehicle weight and miles per gallon (mpg) shown in the scattergram below?
Estimating the combined mean values for the given data - find the mean for the combined sample
A shipping form keeps 2 cars in readiness for local delivery. Because of demands on their time and the frequency of mechanical failure, the probability that a particular car will be available when needed is 0.9.
Standard deviation is $0.10. At α = 0.01, is there significant difference in price? Determine the 99% confidence interval of the difference in the means.
21st Century Insurance Company claims that telephone calls for policy holder information are answered in at most 3 minutes. A random survey of 36 phone calls results in the mean 3.3311 and standard deviation 2.1788.
Which of the following methods could lead to stronger evidence for the outcome of a nonparametric test?
The probability that student pilot passes the written test for a private pilot's license is 0.7. Find the probability that the student will pass the test: (a) on the third attempt (b) before the fourth attempt.
In a random sample of 10 adults from a nearby county, the mean waste generated per person per day was 4.35 pounds and the standard deviation was 1.88 pounds.
question a professor in the psychology department would like to determine whether there has been a significant change
What is the mean amount spent on insurance? If we select a family at random, what is the probability they spend less than $2,000 per year on insurance per year?
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