- 11.R11.1: Testing a genetic model Biologists wish to cross pairs of tobacco p...
- 11.R11.2: Sorry, no chi-square We would prefer to learn from teachers who kno...
- 11.R11.3: Stress and heart attacks You read a newspaper article that describe...
- 11.R11.4: Sexy magazine ads? Researchers looked at 1509 full-page ads that sh...
- 11.R11.5: Popular kids Who were the popular kids at your elementary school? D...
- 11.T11.1: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.2: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.3: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.4: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.5: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.6: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.7: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.8: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.9: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.10: Section I: Multiple Choice Select the best answer for each question...
- 11.T11.11: Section II: Free Response Show all your work. Indicate clearly the ...
- 11.T11.12: Section II: Free Response Show all your work. Indicate clearly the ...
- 11.T11.13: Section II: Free Response Show all your work. Indicate clearly the ...
Solutions for Chapter 11: Inference for Ditribution of Categorical Data
Full solutions for The Practice of Statistics | 5th Edition
In hypothesis testing, a region in the sample space of the test statistic such that if the test statistic falls within it, the null hypothesis cannot be rejected. This terminology is used because rejection of H0 is always a strong conclusion and acceptance of H0 is generally a weak conclusion
An equation for a conditional probability such as PA B ( | ) in terms of the reverse conditional probability PB A ( | ).
An effect that systematically distorts a statistical result or estimate, preventing it from representing the true quantity of interest.
A chart used to organize the various potential causes of a problem. Also called a ishbone diagram.
Conditional probability distribution
The distribution of a random variable given that the random experiment produces an outcome in an event. The given event might specify values for one or more other random variables
Conditional probability mass function
The probability mass function of the conditional probability distribution of a discrete random variable.
See Control chart.
In regression, Cook’s distance is a measure of the inluence of each individual observation on the estimates of the regression model parameters. It expresses the distance that the vector of model parameter estimates with the ith observation removed lies from the vector of model parameter estimates based on all observations. Large values of Cook’s distance indicate that the observation is inluential.
Another name for factors that are arranged in a factorial experiment.
Cumulative normal distribution function
The cumulative distribution of the standard normal distribution, often denoted as ?( ) x and tabulated in Appendix Table II.
A parameter in a tabular CUSUM algorithm that is determined from a trade-off between false alarms and the detection of assignable causes.
The amount of variability exhibited by data
A concept in parameter estimation that uses the variances of different estimators; essentially, an estimator is more eficient than another estimator if it has smaller variance. When estimators are biased, the concept requires modiication.
A study in which a sample from a population is used to make inference to the population. See Analytic study
Error sum of squares
In analysis of variance, this is the portion of total variability that is due to the random component in the data. It is usually based on replication of observations at certain treatment combinations in the experiment. It is sometimes called the residual sum of squares, although this is really a better term to use only when the sum of squares is based on the remnants of a model-itting process and not on replication.
A property of a collection of events that indicates that their union equals the sample space.
Exponential random variable
A series of tests in which changes are made to the system under study
Any test of signiicance involving the F distribution. The most common F-tests are (1) testing hypotheses about the variances or standard deviations of two independent normal distributions, (2) testing hypotheses about treatment means or variance components in the analysis of variance, and (3) testing signiicance of regression or tests on subsets of parameters in a regression model.
A function that is used to determine properties of the probability distribution of a random variable. See Moment-generating function
Goodness of fit
In general, the agreement of a set of observed values and a set of theoretical values that depend on some hypothesis. The term is often used in itting a theoretical distribution to a set of observations.