Statistical hypothesis testing
... after a potential impact (Nuclear power plant) is the same as before (θ = 0) ...
... after a potential impact (Nuclear power plant) is the same as before (θ = 0) ...
Fitting a One-Way ANOVA Model
... Tukey's Honest Significant Difference (HSD) intervals: Named for John Tukey, who worked for AT&T back when it had more money than God (and better service), this method was specifically designed to control the family-wise Type I error rate for all possible pairwise comparisons of treatment means at a ...
... Tukey's Honest Significant Difference (HSD) intervals: Named for John Tukey, who worked for AT&T back when it had more money than God (and better service), this method was specifically designed to control the family-wise Type I error rate for all possible pairwise comparisons of treatment means at a ...
Statistics
... A national sampling of prices for new and used houses found that the mean price for a new house is $120,000 and the standard deviation is $6100 and that the mean price for a used house is $50,000 with a standard deviation equatl to $3150. In terms of absolute deviation, the standard deviation of pri ...
... A national sampling of prices for new and used houses found that the mean price for a new house is $120,000 and the standard deviation is $6100 and that the mean price for a used house is $50,000 with a standard deviation equatl to $3150. In terms of absolute deviation, the standard deviation of pri ...
Data Description, Populations and the Normal Distribution
... All Normal distribution have the same basic shape but they may have different locations and different spreads or dispersions. The location is determined by the position of the central peak and the dispersion by the width of the bell. These two attributes are determined by two population parameters: ...
... All Normal distribution have the same basic shape but they may have different locations and different spreads or dispersions. The location is determined by the position of the central peak and the dispersion by the width of the bell. These two attributes are determined by two population parameters: ...
Chapter 9 Hypothesis Testing
... Assume that a sample of 30 toothpaste tubes provides a sample mean of 6.1 oz. The population standard deviation is believed to be 0.2 oz. Perform a hypothesis test, at the .03 level of significance, to help determine whether the filling process should continue operating or be stopped and corrected. ...
... Assume that a sample of 30 toothpaste tubes provides a sample mean of 6.1 oz. The population standard deviation is believed to be 0.2 oz. Perform a hypothesis test, at the .03 level of significance, to help determine whether the filling process should continue operating or be stopped and corrected. ...
Mean and Standard Deviation of Binomial Distribution
... success (failure loses 5 dollars, success wins 2 dollars). What is the mean and SD of this box? Direct calculation, clearly, would take a long time. Generalize by setting up a box with B total numbers; let A of the numbers be "large" (+ 2 in the example above), and B - A of the numbers be "small" (- ...
... success (failure loses 5 dollars, success wins 2 dollars). What is the mean and SD of this box? Direct calculation, clearly, would take a long time. Generalize by setting up a box with B total numbers; let A of the numbers be "large" (+ 2 in the example above), and B - A of the numbers be "small" (- ...
Chapter 5. Sampling Distributions
... For example, suppose we wish to estimate the average sleep time of all students in a university. Here, the population is “all students in the university,” and the population parameter of interest is “average sleep time,” denoted by µ. We can randomly select 10 students from this university and recor ...
... For example, suppose we wish to estimate the average sleep time of all students in a university. Here, the population is “all students in the university,” and the population parameter of interest is “average sleep time,” denoted by µ. We can randomly select 10 students from this university and recor ...
Dr. Nafez M. Barakat
... Definition: median of a data set Arrange the data in increasing order. -if the number of observation is odd then the median is the observation exactly in the middle of the ordered lest - if the number of observation is even then the median is the mean of the two middle observations in the ordered li ...
... Definition: median of a data set Arrange the data in increasing order. -if the number of observation is odd then the median is the observation exactly in the middle of the ordered lest - if the number of observation is even then the median is the mean of the two middle observations in the ordered li ...