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Question: Feeding behavior of blackbream fish. In Brain and Behavior Evolution (April 2000), Zoologists conducted a study of the feeding behavior of blackbream fish. The zoologists recorded the number of aggressive strikes of two blackbream fish feeding at the bottom of an aquarium in the 10-minute period following the addition of food. The next table lists the weekly number of strikes and age of the fish (in days).
(a) Write the equation of a straight-line model relating number of strikes (y) to age of fish (x).
(b) Fit the model to the data using the method of least squares and give the least squares prediction equation.
(c) Give a practical interpretation of the value of β^0, if possible.
(d) Give a practical interpretation of the value of β^1, if possible.
suppose that the skewness associated with the residuals from a multiple regression of 88 observations is -0.3 and the
A point estimate for the difference between the mean purchases of the users of the two credit cards is:
Please use synthetic division and the remainder theorem to find the indicated function values:
If the correlation coefficient expresses the degree of a linear relationship, why is it appropriate to use the same formula with nonlinear relationships?
What is the expected waiting time? What is the variance?- What is the probability that the wait will be between four and six minutes?
Assume that the population standard deviation is 0.4. If a random sample of 200 women is selected, what is the probability that the sample mean will fall between 1.52 and 1.62?
assume x is normally distributed with a mean of 12 and a variance of 16.a calculate p9ltxlt17b find x1 such that pxgtx1
1. What major event(s) surrounding Jackson's Presidential administrations do you believe made the greatest impact on the shape of the country, and why? Your answer should include a minimum of 2 events and their impact. The events may include, but ..
el nino and the monsoon. the earth is interconnected. for example it appears that el nino the periodic warming of the
Find the minimum required sample size for estimating the average return on real estate investments to within 0.5% per year with 95% confidence
Can you think of another example of approximating a discrete variable with a continuous number?
discuss what satisfying assumption 1-3 for regression inferences by the variables under consideration would mean. an
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