 112.1: How is the chisquare independence test similar to the goodnessof...
 112.2: How are the degrees of freedom computed for the independence test? ...
 112.3: Generally, how would the null and alternative hypotheses be stated ...
 112.4: What is the name of the table used in the independence test? Contin...
 112.5: How are the expected values computed for each cell in the table? Th...
 112.6: Explain how the chisquare independence test differs from the chis...
 112.7: How are the null and alternative hypotheses stated for the test of ...
 112.8: Ethnicity and Movie Admissions Are movie admissions related to ethn...
 112.9: Endangered or Threatened Species Can you conclude a relationship be...
 112.10: Women in the Military This table lists the numbers of officers and ...
 112.11: Composition of State Legislatures Is the composition of state legis...
 112.12: Population and Age Is the size of the population by age related to ...
 112.13: Medal Counts for the Olympics The 2010Winter Olympics final medal c...
 112.14: Congressional Representatives Four states were randomly selected, a...
 112.15: Student Majors at Colleges The table below shows the number of stud...
 112.16: Organ Transplantation Listed below is information regarding organ t...
 112.17: Weekend Furniture Sales A large furniture retailer with stores in t...
 112.18: Record CDs Sold Are the sales of CDs (in thousands) by genre relate...
 112.19: Choice of Exercise Equipment Is the choice of exercise equipment de...
 112.20: Effectiveness of New Drug To test the effectiveness of a new drug, ...
 112.21: Recreational Reading and Gender A book publisher wishes to determin...
 112.22: Foreign Language Speaking Dorms A local college recently made the n...
 112.23: Youth Physical Fitness According to a recent survey, 64% of America...
 112.24: Participation in Market Research Survey An advertising firm has dec...
 112.25: Workforce Distribution A researcher wishes to see if the proportion...
 112.26: Mothers Working Outside the Home According to a recent survey, 59% ...
 112.27: Volunteer Practices of Students The Bureau of Labor Statistics repo...
 112.28: Fathers in the Delivery Room On average, 79% of American fathers ar...
 112.29: Injuries on Monkey Bars A childrens playground equipment manufactur...
 112.30: Thanksgiving Travel According to the American Automobile Associatio...
 112.31: Grocery Lists The vice president of a large supermarket chain wishe...
 112.32: For a 2 _ 2 table, a, b, c, and d are the observed values for each ...
 112.33: For the contingency table shown in Exercise 32, compute the chisqu...
 112.34: When the chisquare test value is significant and there is a relati...
Solutions for Chapter 112: Tests Using Contingency Tables
Full solutions for Elementary Statistics: A Step by Step Approach 8th ed.  8th Edition
ISBN: 9780073386102
Solutions for Chapter 112: Tests Using Contingency Tables
Get Full SolutionsElementary Statistics: A Step by Step Approach 8th ed. was written by and is associated to the ISBN: 9780073386102. This expansive textbook survival guide covers the following chapters and their solutions. Chapter 112: Tests Using Contingency Tables includes 34 full stepbystep solutions. This textbook survival guide was created for the textbook: Elementary Statistics: A Step by Step Approach 8th ed., edition: 8. Since 34 problems in chapter 112: Tests Using Contingency Tables have been answered, more than 31830 students have viewed full stepbystep solutions from this chapter.

2 k factorial experiment.
A full factorial experiment with k factors and all factors tested at only two levels (settings) each.

aerror (or arisk)
In hypothesis testing, an error incurred by failing to reject a null hypothesis when it is actually false (also called a type II error).

Addition rule
A formula used to determine the probability of the union of two (or more) events from the probabilities of the events and their intersection(s).

Additivity property of x 2
If two independent random variables X1 and X2 are distributed as chisquare with v1 and v2 degrees of freedom, respectively, Y = + X X 1 2 is a chisquare random variable with u = + v v 1 2 degrees of freedom. This generalizes to any number of independent chisquare random variables.

Average
See Arithmetic mean.

Axioms of probability
A set of rules that probabilities deined on a sample space must follow. See Probability

Bimodal distribution.
A distribution with two modes

Chance cause
The portion of the variability in a set of observations that is due to only random forces and which cannot be traced to speciic sources, such as operators, materials, or equipment. Also called a common cause.

Comparative experiment
An experiment in which the treatments (experimental conditions) that are to be studied are included in the experiment. The data from the experiment are used to evaluate the treatments.

Conditional probability density function
The probability density function of the conditional probability distribution of a continuous random variable.

Contingency table.
A tabular arrangement expressing the assignment of members of a data set according to two or more categories or classiication criteria

Contour plot
A twodimensional graphic used for a bivariate probability density function that displays curves for which the probability density function is constant.

Crossed factors
Another name for factors that are arranged in a factorial experiment.

Discrete random variable
A random variable with a inite (or countably ininite) range.

Distribution free method(s)
Any method of inference (hypothesis testing or conidence interval construction) that does not depend on the form of the underlying distribution of the observations. Sometimes called nonparametric method(s).

Empirical model
A model to relate a response to one or more regressors or factors that is developed from data obtained from the system.

Error mean square
The error sum of squares divided by its number of degrees of freedom.

Exhaustive
A property of a collection of events that indicates that their union equals the sample space.

Fisherâ€™s least signiicant difference (LSD) method
A series of pairwise hypothesis tests of treatment means in an experiment to determine which means differ.

Gaussian distribution
Another name for the normal distribution, based on the strong connection of Karl F. Gauss to the normal distribution; often used in physics and electrical engineering applications