lecture3
... The outputs for many hypothesis test functions also include confidence intervals. Loosely speaking, a confidence interval is a range of values that have a chosen probability of containing the true hypothesized quantity. Suppose, in our example, 1.15 is inside a 95% confidence interval for the mean, ...
... The outputs for many hypothesis test functions also include confidence intervals. Loosely speaking, a confidence interval is a range of values that have a chosen probability of containing the true hypothesized quantity. Suppose, in our example, 1.15 is inside a 95% confidence interval for the mean, ...
Basic Statistics II – Examples
... b) We have two small independent samples. For the measurements we could consider the two-sample t-test, possibly with a transformation, or the MannWhitney U-test. For each of them the standard deviations are similar in the two groups. For age, height and weight, the t-test appears appropriate. Smoki ...
... b) We have two small independent samples. For the measurements we could consider the two-sample t-test, possibly with a transformation, or the MannWhitney U-test. For each of them the standard deviations are similar in the two groups. For age, height and weight, the t-test appears appropriate. Smoki ...
251x9811 2/11/98
... Data like temperatures, where differences between numbers are meaningful, but where there is no bottom or zero on the scale. h) Third Quintile (1) A point with 3/5 or 60% of the data below it, x.40 . i) Leptokurtic (1) Sharp-peaked – coefficient of excess is positive. j) Explain the difference betwe ...
... Data like temperatures, where differences between numbers are meaningful, but where there is no bottom or zero on the scale. h) Third Quintile (1) A point with 3/5 or 60% of the data below it, x.40 . i) Leptokurtic (1) Sharp-peaked – coefficient of excess is positive. j) Explain the difference betwe ...
Chapter 1: Statistics
... If both populations have normal distributions, then the sampling distribution of x1 x 2 will also be normally distributed. ...
... If both populations have normal distributions, then the sampling distribution of x1 x 2 will also be normally distributed. ...
Statistics Notation Review - Department of Agricultural Economics
... Measures of dispersion of interest are the range, maximum, minimum, variance, standard deviation, and coefficient of variation. The range is the difference between the largest value in the sample (the maximum) and the smallest value (the minimum), that is R x max x min , where R denotes the rang ...
... Measures of dispersion of interest are the range, maximum, minimum, variance, standard deviation, and coefficient of variation. The range is the difference between the largest value in the sample (the maximum) and the smallest value (the minimum), that is R x max x min , where R denotes the rang ...