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3 days ago · The input into the normalized Gaussian function is the mean of sample means (~50) and the mean sample standard deviation divided by the square root of the sample size (~28.87/ √ n), which is called the standard deviation of the mean (since it refers to the spread of sample means).
2 days ago · One Sample T-test: To compare a sample mean with that of the population mean. where, x̄ is the sample mean; s is the sample standard deviation; n is the sample size; μ is the population mean; Two-Sample T-test: To compare the means of two different samples. where, x̄ 1 is the sample mean of the first group; x̄ 2 is the sample mean of the ...
4 days ago · 1. Find the mean in the following numbers: 19, 21, 18, 17, 18, 22, 46. A. 23. B. 16. C. 19. D. 500. E. None of the above. Correct Answer. A. 23. Explanation. The mean, or average, of a set of numbers is calculated by summing all the numbers and then dividing by the count of numbers in the set.
2 days ago · sampling bias A problem that occurs when a sample is not representative of the population from which it is drawn. 37. median Middle number 38. mean the arithmetic average 39. bias leaning toward or against a certain person, group, or idea 40. bias sampling sample NOT representative of the population 3 / 3
3 days ago · The sample mean's standard error is the standard deviation of the set of means that would be found by drawing an infinite number of repeated samples from the population and computing a mean for each sample. The mean's standard error turns out to equal the population standard deviation divided by the square root of the sample size, and is ...
3 days ago · A two-tailed test, in statistics, is a method in which the critical area of a distribution is two-sided and tests whether a sample is greater than or less than a certain range of...
5 days ago · Explore the relationship between sample size and power in a hypothesis test comparing two population means.
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