Two-way analysis of variance
... provides a statistical test of whether or not the means of several groups are equal, and therefore generalizes t-test to more than two groups. Doing multiple two-sample t-tests would result in an increased chance of committing a type I error. For this reason, ANOVAs are useful in comparing (testing) ...
... provides a statistical test of whether or not the means of several groups are equal, and therefore generalizes t-test to more than two groups. Doing multiple two-sample t-tests would result in an increased chance of committing a type I error. For this reason, ANOVAs are useful in comparing (testing) ...
What is Hypothesis Testing?
... •The statement under question is called the null hypothesis, often denoted by H0. •We are concerned here with statistical significance, not scientific or medical or economic or philosophical significance. •A statistically significant result means that the sample statistic we observed is very unlikel ...
... •The statement under question is called the null hypothesis, often denoted by H0. •We are concerned here with statistical significance, not scientific or medical or economic or philosophical significance. •A statistically significant result means that the sample statistic we observed is very unlikel ...
BurtnerNonparametricSolutions1234 publishApril72011
... “Whenever n > 10, binomial probabilities with p = ½ can be approximated from the normal curve, since np = nq > 5.” Burtner: Note that the probability associated with the calculated z score is an approximation and may result in a different decision. If a statistical program such as Minitab is availab ...
... “Whenever n > 10, binomial probabilities with p = ½ can be approximated from the normal curve, since np = nq > 5.” Burtner: Note that the probability associated with the calculated z score is an approximation and may result in a different decision. If a statistical program such as Minitab is availab ...
STA 291 Summer 2010
... increases, the chance that the relative frequency of occurrence for an event will differ from the true probability of the event by more than any small number approaches zero Doing a large number of repetitions allows us to accurately approximate the true probabilities using the results of our repe ...
... increases, the chance that the relative frequency of occurrence for an event will differ from the true probability of the event by more than any small number approaches zero Doing a large number of repetitions allows us to accurately approximate the true probabilities using the results of our repe ...
Chapter 3 notes
... a head (H) or a tail (T). For each of these, there are six possible outcomes when rolling a die: 1, 2, 3, 4, 5, or 6. One way to list outcomes for actions occurring in a sequence is to use a tree diagram. ...
... a head (H) or a tail (T). For each of these, there are six possible outcomes when rolling a die: 1, 2, 3, 4, 5, or 6. One way to list outcomes for actions occurring in a sequence is to use a tree diagram. ...
Discrete Random Variables
... Several probability functions warrant special mention as they arise frequently in real-life situations. These are the probability functions for the so-called Geometric, Hypergeometric, Binomial and Poisson distributions. We focus on the physical assumptions underlying the application of these functi ...
... Several probability functions warrant special mention as they arise frequently in real-life situations. These are the probability functions for the so-called Geometric, Hypergeometric, Binomial and Poisson distributions. We focus on the physical assumptions underlying the application of these functi ...
