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Fishing question
Assume the condition of Normality is met for the problem below. I also want to know the following elements: (Please do not use the Student t test, nor a Chi-square test) Two-tailed test ok?
1. The U.S. Fish and Wildlife Service's report on the bass population of North American lakes indicated average weight of fish to be 3.0 lb. and a standard deviation of .30 lb. Furthermore, 50% of all bass were females.
The State of Florida conducted an independent study and reported the average weight of their bass was 3.2 lb. Additionally, the report indicated that 58% of the bass were females.
(This report was based on a small sample of 121)
Test the hypothesis that Florida's bass female proportion differs from the national proportion. Use a=.05 to state your conclusion.
Use SPSS to make a scatterplot between stress and coping, and then add the fitted regression line to the plot. Mark both intercept and slope on the plot (You may consider to change the default X scale in SPSS)
For a recent year, the mean fare to fly from Charlotte, North Carolina, to Seattle, Washington, on a discount ticket was $267. A random sample of round-trip discount fares on this route last month gives:
Critically discuss how you can apply the concept and method of interval estimation to help you solve some of the problems in a regularly accounting department. Give a few examples.
The scores of college-bound senior men on the math part of the SAT followed a normal distribution with mean 527 and standard deviation 116.
Four students each received a raw score of 22 on a different test. Compute the z-score for the raw score value of 22 for each student, given information about the distributions of X values for each test.
At 95% level of confidence, can we conclude that the babies using the Gibbs product gained less weight?
The following table presents data on political party affiliation and class level for sample of students in certain university: If the student is selected at random from sample, determine the probability that student is Republican.
Supposing that there is no cost of entering the sweepstakes, find the expected value of the amount won for one entry. Determine the expected value if the cost of entering this sweepstakes is the cost of a postage stamp. Is it worth entering the cont..
Find the area under the normal distribution curve between z = 1.52 and z = 2.43.
For any distribution the score that separates the highest 10% from the rest of scores is called.
A sample of 23 European countries found that the variance of life expectancy was 7.3 years. What is the 95% confidence interval for the variance of life expectancy in Europe.
In doing so, you collect a random sample of 50 salespersons employed by his company, which is thought to be representative of sales staffs of competing organizations in the industry. The collected random sample of size 50 showed that only 18 were ..
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