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Question: Collecting the data
Using the rectangle sheet from the earlier "Random Rectangles" activity and a random number table, draw as many samples of size 5 as required in order to have 100 samples for the class. Each student will calculate the average area of the sample(s) of rectangles. The instructor will collect these averages and pass out a list of them to the class. Repeat the data collection procedure, using samples of size 10.
to compare the effects on energy intake of drinking wine either before or with a meal 11 men participated in a
When we have several criteria with different scale, for ranking can we add values after standardization? for exaample for ranking websites we have number of visitors and page load time and size and.
Discuss whether each of the following is likely to be a problem in this study.- Relying on memory.- Confounding variable.- Hawthorne effect.
Find the estimated regression line, and complete the ANOVA table.- Conduct an F test for a significant regression. Use a significance level of 0.01.
Explain why researchers do not use random samples. How are they able to generalize their results?
1. Use meaning of S notation and compute S(X2), (SX)2 for the following set of numbers: X= 2, 3, 5.
Set up a Metropolis-Hastings algorithm with the likelihood as target using an exponential candidate for α and a Laplace (double-exponential) candidate for β.
suppose that you are a researcher testing a new drug that might cure aids. in making a decision about whether to
The Law of Increasing Entropy is an impenetrable barrier which no evolutionary mechanism yet suggested has ever been able to overcome. Evolution and entropy are opposing and mutually exclusive concepts. If the entropy principle is really a univers..
The insect then chooses one of the two branches. Suppose that 45 of 75 insects choose the pheromone branch. The 95% large-sample confidence interval for the proportion of the population that prefers the pheromone branch is:
Mistake. A clerk entering salary data into a company spreadsheet accidentally put an extra "0" in the boss's salary, listing it as $2,000,000 instead.
A sales representative has 35 customers throughout the state and is planning a trip during which 20 will be visited. In how many orders can the visits be made?
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