- 11.3.1: Smoking Cessation The accompanying table summarizes successes and f...
- 11.3.2: Terminology The table in Exercise 1 is called a contingency table o...
- 11.3.3: Degrees of Freedom and Critical Value For the hypothesis test in Ex...
- 11.3.4: Right-Tailed, Left-Tailed, Two-Tailed Is the hypothesis test in Exe...
- 11.3.5: In Exercises 518, test the given claim. Denomination Effect In a st...
- 11.3.6: In Exercises 518, test the given claim. Which Treatment Is Better? ...
- 11.3.7: In Exercises 518, test the given claim. Testing a Lie Detector The ...
- 11.3.8: In Exercises 518, test the given claim. Discrimination The U.S. Sup...
- 11.3.9: In Exercises 518, test the given claim. Is Sentence Independent of ...
- 11.3.10: In Exercises 518, test the given claim. nurse a Serial killer? Aler...
- 11.3.11: In Exercises 518, test the given claim. Tennis Challenges The table...
- 11.3.12: In Exercises 518, test the given claim. Lefties A random sample of ...
- 11.3.13: In Exercises 518, test the given claim. Soccer Strategy In soccer, ...
- 11.3.14: In Exercises 518, test the given claim. Is Seat Belt use Independen...
- 11.3.15: In Exercises 518, test the given claim. Clinical Trial of Echinacea...
- 11.3.16: In Exercises 518, test the given claim. Injuries and Motorcycle Hel...
- 11.3.17: In Exercises 518, test the given claim. Survey Refusals A study of ...
- 11.3.18: In Exercises 518, test the given claim. Baseball Player Births In h...
- 11.3.19: Clinical Trial of Lipitor Lipitor is the trade name of the drug ato...
- 11.3.20: Genetics and Handedness In a study of left-handedness as a possible...
- 11.3.21: Equivalent Tests A x2 test involving a 2 * 2 table is equivalent to...
- 11.3.22: Using Yatess Correction for Continuity The chi-square distribution ...
Solutions for Chapter 11.3: Contingency Tables
Full solutions for Essentials of Statistics | 5th Edition
2 k factorial experiment.
A full factorial experiment with k factors and all factors tested at only two levels (settings) each.
2 k p - factorial experiment
A fractional factorial experiment with k factors tested in a 2 ? p fraction with all factors tested at only two levels (settings) each
A distribution with two modes
In experimental design, a group of experimental units or material that is relatively homogeneous. The purpose of dividing experimental units into blocks is to produce an experimental design wherein variability within blocks is smaller than variability between blocks. This allows the factors of interest to be compared in an environment that has less variability than in an unblocked experiment.
A chart used to organize the various potential causes of a problem. Also called a ishbone diagram.
The tendency of data to cluster around some value. Central tendency is usually expressed by a measure of location such as the mean, median, or mode.
A subset selected without replacement from a set used to determine the number of outcomes in events and sample spaces.
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
See Control chart.
Degrees of freedom.
The number of independent comparisons that can be made among the elements of a sample. The term is analogous to the number of degrees of freedom for an object in a dynamic system, which is the number of independent coordinates required to determine the motion of the object.
Deming’s 14 points.
A management philosophy promoted by W. Edwards Deming that emphasizes the importance of change and quality
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.
Estimate (or point estimate)
The numerical value of a point estimator.
A type of experimental design in which every level of one factor is tested in combination with every level of another factor. In general, in a factorial experiment, all possible combinations of factor levels are tested.
Finite population correction factor
A term in the formula for the variance of a hypergeometric random variable.
Fisher’s least signiicant difference (LSD) method
A series of pair-wise hypothesis tests of treatment means in an experiment to determine which means differ.
In statistical quality control, that portion of a number of units or the output of a process that is defective.
An arrangement of the frequencies of observations in a sample or population according to the values that the observations take on
A function used in the probability density function of a gamma random variable that can be considered to extend factorials
A function that is used to determine properties of the probability distribution of a random variable. See Moment-generating function