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When Richard Stallman founded the Free Software Foundation in 1985, he was able to tap into the energy of many programmers around the world who wanted to work on a free operating system. Later, in the early 1990s, Linux Torvalds was also able to fi nd programmers to help him, in this case, to develop the Linux kernel. Why are so many programmers willing to work a long time on a diffi cult project and then give away the fruits of their labor for free? Is this more common with young programmers than old programmers? If so, why?
In chi-square goodness-of-fit test when there is close agreement between observed frequency and expected frequency, chi-square test value will be small.
Perform a two-tailed hypothesis test on both the legal services satisfaction and the sentence satisfaction variable's data using a .05 significance level.
They hope to use a sample size such that, with probability 0.95, the error will not exceed 0.04. What sample size will ensure this, regardless of what sample proportion value occurs when they gather the sample?
find the probability distribution for the number of jazz cds when 4 cds are selected at random from a collection
The speed of cars passing through a checkpoint follows a normal distribution with μ = 62.6 miles per hour and σ = 3.7 miles per hour. What is the probability that the next car passing will ...
if a sample is subdivided into subsamples a minimal sample size of 30 is necessary for every subsample?a. trueb.
Suppose that 15% of the population is left-handed. If 20 people are selected at random, find the probability that exactly 4 of them are left-handed.
An experiment was performed to compare the effect of pH on the adhe sive qualities of a lens coating. The test procedure for measuring adhesion is "noisy", that is, there is a large amount of test error in the measurement. For that reason, 10..
To decrease the amount of time it takes to deliver packages, a delivery company purchased computer software that finds the optimal route for making deliveries based upon the input of the package destinations.
We are interested in determining whether or not the population in favor of Candidate A is significantly more than 75%. The test statistic is?
A study wants to look at the correlation between sugar consumption and the development of cavities. What is the sample correlation coefficient? What type of correlation does this represent
Find the mean and standard deviation and difference between the means of the two populations
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