 15.2.1: A is a sequence of similar events, items, or symbols that is follow...
 15.2.2: In a runs test for randomness, we let represent the sample size of ...
 15.2.3: In 36, a sequence is given: (a) Identify the values of n, n1, n2, a...
 15.2.4: In 36, a sequence is given: (a) Identify the values of n, n1, n2, a...
 15.2.5: In 36, a sequence is given: (a) Identify the values of n, n1, n2, a...
 15.2.6: In 36, a sequence is given: (a) Identify the values of n, n1, n2, a...
 15.2.7: Baseball Hideki Okajima is a relief pitcher for the Boston Red Sox....
 15.2.8: Football A certain NFL coach likes to select the first 15 offensive...
 15.2.9: OnTime Flights The following data represent the arrival status of ...
 15.2.10: OnTime Flights The following data represent the arrival status of ...
 15.2.11: Quality Control The qualitycontrol manager of a bottling company w...
 15.2.12: Quality Control The qualitycontrol manager of a candy company want...
 15.2.13: Random Walk Down Wall Street? Does a stock price fluctuate randomly...
 15.2.14: Random Walk Down Wall Street? Does the Dow Jones Industrial Average...
 15.2.15: Random Residuals In a leastsquares regression model, the residuals...
 15.2.16: Random Residuals In a leastsquares regression model, the residuals...
 15.2.17: Quality Control A qualitycontrol inspector tracks the compressive ...
 15.2.18: RandomNumber Generators Using statistical software or a graphing c...
 15.2.19: What is meant by random? Explain what a run is
 15.2.20: We have evidence against the null hypothesis that the data are rand...
Solutions for Chapter 15.2: RUNS TEST FOR RANDOMNESS
Full solutions for Statistics: Informed Decisions Using Data  4th Edition
ISBN: 9780321757272
Solutions for Chapter 15.2: RUNS TEST FOR RANDOMNESS
Get Full SolutionsSince 20 problems in chapter 15.2: RUNS TEST FOR RANDOMNESS have been answered, more than 162094 students have viewed full stepbystep solutions from this chapter. Statistics: Informed Decisions Using Data was written by and is associated to the ISBN: 9780321757272. This textbook survival guide was created for the textbook: Statistics: Informed Decisions Using Data , edition: 4. Chapter 15.2: RUNS TEST FOR RANDOMNESS includes 20 full stepbystep solutions. This expansive textbook survival guide covers the following chapters and their solutions.

Adjusted R 2
A variation of the R 2 statistic that compensates for the number of parameters in a regression model. Essentially, the adjustment is a penalty for increasing the number of parameters in the model. Alias. In a fractional factorial experiment when certain factor effects cannot be estimated uniquely, they are said to be aliased.

Attribute
A qualitative characteristic of an item or unit, usually arising in quality control. For example, classifying production units as defective or nondefective results in attributes data.

Backward elimination
A method of variable selection in regression that begins with all of the candidate regressor variables in the model and eliminates the insigniicant regressors one at a time until only signiicant regressors remain

Bimodal distribution.
A distribution with two modes

Block
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.

Center line
A horizontal line on a control chart at the value that estimates the mean of the statistic plotted on the chart. See Control chart.

Central tendency
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.

Chisquare test
Any test of signiicance based on the chisquare distribution. The most common chisquare tests are (1) testing hypotheses about the variance or standard deviation of a normal distribution and (2) testing goodness of it of a theoretical distribution to sample data

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

Correction factor
A term used for the quantity ( / )( ) 1 1 2 n xi i n ? = that is subtracted from xi i n 2 ? =1 to give the corrected sum of squares deined as (/ ) ( ) 1 1 2 n xx i x i n ? = i ? . The correction factor can also be written as nx 2 .

Correlation coeficient
A dimensionless measure of the linear association between two variables, usually lying in the interval from ?1 to +1, with zero indicating the absence of correlation (but not necessarily the independence of the two variables).

Covariance
A measure of association between two random variables obtained as the expected value of the product of the two random variables around their means; that is, Cov(X Y, ) [( )( )] =? ? E X Y ? ? X Y .

Cumulative normal distribution function
The cumulative distribution of the standard normal distribution, often denoted as ?( ) x and tabulated in Appendix Table II.

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.

Discrete uniform random variable
A discrete random variable with a inite range and constant probability mass function.

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

Experiment
A series of tests in which changes are made to the system under study

Exponential random variable
A series of tests in which changes are made to the system under study

Gamma random variable
A random variable that generalizes an Erlang random variable to noninteger values of the parameter r

Generator
Effects in a fractional factorial experiment that are used to construct the experimental tests used in the experiment. The generators also deine the aliases.