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The following data (webvisit .txt) are the number of visits to a web site over a 3-week period.
15321 15382 15337 15338 14320 15366 15251
15319 15405 14594
14453 14376 14249 15377 14489 15285 15425
15333 15319 15273
14290
(a) Construct a histogram of these data.
(b) Write a short report describing the distribution of the visits to this web site. Include some discussion of why this distribution might have that particular shape.
The obvious caveat applies that such a (zero) correlation is ultimately an empirical question that depends on the data set. [1] Acemoglu, Daron, (1998) Why do New Technologies Complement Skills?
College softball programs have a limited number of scholarships to offer promising high school seniors, so the programs invest a great deal of effort in evaluating these players.
a bakery has an average daily expense of 1350. the standard deviation is 150. the owner takes a sample of 50 bills what
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The function s(t) = ut + 1/2 gt^2 represents the distance traveled s meters in time t seconds when the initial velocity is u m/s and acceleration is g m/s^2.
Determine the mean and standard error of the x - bar distribution.
fifteen tobacco plants of the same age and genetic strain were randomly assigned to three groups of five plants each.
1. The main trial is conducted and involves a total of 200 patients. Patients are enrolled and randomized to receive either the experimental medication or the placebo. The data shown below are data collected at the end of the study after 6 weeks o..
An investment firm with 10,000 clients would like to accurately forecast the average dollar amount their current customer will deposit over the coming year.
a test to detect pollutants is 90 accurate when pollutants are present in a sample and 96 accurate when pollutants are
A random sample of 15 snow mobiles was selected, and the lifetime (in months) of the batteries was measured. The variance of the sample was 8.6. Find the 90% confidence interval of the true variance and standard deviation.
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