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Biology and Environmental Science
Lionfish are native to Indo-Pacific waters but were introduced into the Atlantic in the 1990s. These spiney fish have huge appetites, feed on native species, and have a mean length of 13.5 inches.45 Recently, invasive lionfish were found 300 feet below the water's surface off the coast of Florida. There was some speculation that these fish were larger than previously observed. A random sample of 24 lionfish was obtained near the sunken Bill Boyd cargo ship close to Fort Lauderdale, and the length of each was recorded (in inches). The summary statistics were x‾ = 16.005 and s = 4.039.
a. Is there any evidence to suggest that the true mean length of lionfish in this area near Fort Lauderdale is greater than 13.5 inches? Use a = 0.01 and assume the underlying population is normal.
b. Find bounds on the p value associated with this test.
If a transit employee provides a strand of hair for drug testing, state the null and alternative hypotheses in verbal terms, then identify what would constitute a Type I error and a Type II error in this situation.
suppose that 64 of the students in elizabethtown college are female. if 30 etown students are selected at random what
we know that the average life of a light bulb is 10000 hours. there are 12 light bulbs in a classroom. in order for a
q1 in about 250 words describe how linear regression analysis could be used in your organisation or any organisation
If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates?
What assumption must you make about the population distribution in order to construct the confidence interval estimate in (a)?
A target for a bomb is in the center of a circle with radius of 1 mile. A bomb falls at a randomly selected point inside that circle. If the bomb destroys everything within 1/2 mile of its landing point, what is the probability that the target is ..
Test the hypothesis that the median weight of NFL players is 250 pounds against the alter- native that it is greater at α = 0.05, using (a) the large sample sign test and (b) the Wilcoxon signed rank test.
Percentage points in either direction from what would have been obtained by interviewing all voters in the United States." Find the sample size suggested by this statement.
MCO105 Quantitative Business Methods - Probability and Probability Distributions Assignment. Construct a table with values of x and probabilities f(x) computed in (a), and construct a histogram of this binomial distribution. Calculate the mean (exp..
A tire company made a sampling distribution on one of its brands of tires and determined that the tire had a mean life of 56,000 miles with a standard deviation of 18,100 miles.
Write a computer algorithm that simulates a hypergeometric random variable with parameters - Show that you can choose your die so that you have probability 2/3 of winning no matter which die your friend picks.
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