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Question: Biology and Environmental Science Tourism officials in Palm Beach County, Florida, claim that the mean diameter of sand dollars found on Delray Beach is 4.25 centimeters. Some scientists claim that warmer water off the coast has inhibited growth of all sea life and that the diameter of sand dollars has decreased. State the null and alternative hypothesis.
the lifetime of an electronic amplifier is modeled as an exponential random variable. if 10 of the amplifiers have a
A coworker is considering the use of a log linear (power) model using weight to estimate the cost of a missile engine. They have performed the following calculations in log space using natural logarithms.
Find out the slope, b, and the intercept, a, for the least-squares line. Write the equation of the least squares line.
Test whether there is any change in IQ after the training program (The absolute value of 1 for 4 degrees of freedom at 1% level for one-tailed and two tailed tests are 3.747 and 4.604 respectively)
Force the regression line to go through the point (5, 13). What is the new regression line? What is the new regression equation? Predict Y when X = 10.
This is an example of a Binomial probability experiment; This is neither a Poissonnor a Binomial probability experiment; Not enough information to determine the type of experiment.
Supposed that from a population of 50 banks accounts, we want take a random sample of four account in order to learn about the population, how many different random samples of four accounts are possible?
A random sample of 100 students who took a statistics exam were asked their score on the exam. The mean score on the test was 50; the standard deviation was 10. The scores are normally distributed.
Choose the group that interests you more, and organize the 50 numbers into a simple frequency distribution using the rough-draft form.
As the price of oil rises, there is increased worldwide interest in alternate sources of energy. A Financial Times/Harris Poll surveyed people in six countries to assess attitudes toward a variety of alternate forms of energy
A stationary Markov chain has the following transition matrix. Interest is a constant 5%. Find the APV of the following contracts based on this chain, both issued when the process is in state 0.
suppose that a box contains 5 candies in which 2 of them are sugar-free. you select two candies and eat them. find the
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