 9.5.3 CQQ: In Exercises, use the following survey results: Randomly selected s...
 9.5.3 CRE: Heights of Mothers and Daughters. In Exercises, use the following h...
 9.5.3 RE: Airbags Save Lives In a study of the effectiveness of airbags in ca...
 9.5.4 BSC: Testing Normality Students of the author randomly selected 217 stud...
 9.5.4 CQQ: In Exercises, use the following survey results: Randomly selected s...
 9.5.4 CRE: Heights of Mothers and Daughters. In Exercises, use the following h...
 9.5.1 BSC: F Test Statistica.If S12 represents the larger of two sample varian...
 9.5.4 RE: Are Flights Cheaper When Scheduled Earlier? Listed below are the co...
 9.5.16 BSC: Weights Listed below are weights (kg) of randomly selected females ...
 9.5.17 BSC: use the indicated Data Sets from Appendix B. Assume that both sampl...
 9.5.1 CRE: ?1 CRE Notation In analyzing hits by Vl buzz bombs in World War II...
 9.5.1 RE: Carpal Tunnel Syndrome Carpal tunnel syndrome is a common wrist com...
 9.5.2 CQQ: In Exercises, use the following survey results: Randomly selected s...
 9.5.18 BSC: use the indicated Data Sets from Appendix B. Assume that both sampl...
 9.5.19 BB: Count Five Test for Comparing Variation in Two PopulationsUse the o...
 9.5.2 CRE: Heights of Mothers and Daughters. In Exercises, use the following h...
 9.5.2 RE: Carpal Tunnel Syndrome Construct a confidence interval suitable for...
 9.5.20 BB: LeveneBrownForsythe Test for Comparing Variation in Two Populatio...
 9.5.3 BSC: RobustWhat does it mean when we say that the A test described in th...
 9.5.21 BB: Skull Measurements from Different Times Researchers measured skulls...
 9.5.4CQQ: CQQ In Exercises?, ?use the following survey results: Randomly sele...
 9.5.10RE: RE Comparing Variation ?Use the sample data from Exercise to test t...
 9.5.11BSC: BSC Magnet Treatment? of Pain Researchers conducted a study to dete...
 9.5.12BSC: BSC Skull Measurements? from Different TimesResearchers measured sk...
 9.5.13BSC: BSC Radiation in Baby? Teeth Listed below are amounts of strontium...
 9.5.14BSC: BSC Longevity ?Listed below are the numbers of years that popes and...
 9.5.15BSC: BSC Heights ?Listed below are heights (cm) of randomly selected fem...
 9.5.16BSC: ?16 BSC Weights ?Listed below are weights (kg) of randomly selected...
 9.5.17BSC: BSC use the indicated Data Sets from Appendix B. Assume that both s...
 9.5.18BSC: ?18 BSC use the indicated Data Sets from Appendix B. Assume that bo...
 9.5.19BB: ?19 BB Count Five Test for Comparing Variation in Two Populations?U...
 9.5.20BB: BB LeveneBrownForsythe Test for Comparing Variation in Two Popula...
 9.5.21BB: BB Skull Measurements? from Different Times Researchers measured sk...
Solutions for Chapter 9.5: Elementary Statistics 12th Edition
Full solutions for Elementary Statistics  12th Edition
ISBN: 9780321836960
Solutions for Chapter 9.5
Get Full SolutionsChapter 9.5 includes 33 full stepbystep solutions. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. Since 33 problems in chapter 9.5 have been answered, more than 142259 students have viewed full stepbystep solutions from this chapter. Elementary Statistics was written by and is associated to the ISBN: 9780321836960.

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

`error (or `risk)
In hypothesis testing, an error incurred by rejecting a null hypothesis when it is actually true (also called a type I error).

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.

Analysis of variance (ANOVA)
A method of decomposing the total variability in a set of observations, as measured by the sum of the squares of these observations from their average, into component sums of squares that are associated with speciic deined sources of variation

Binomial random variable
A discrete random variable that equals the number of successes in a ixed number of Bernoulli trials.

C chart
An attribute control chart that plots the total number of defects per unit in a subgroup. Similar to a defectsperunit or U chart.

Components of variance
The individual components of the total variance that are attributable to speciic sources. This usually refers to the individual variance components arising from a random or mixed model analysis of variance.

Conditional mean
The mean of the conditional probability distribution of a 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

Continuous random variable.
A random variable with an interval (either inite or ininite) of real numbers for its range.

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 .

Critical region
In hypothesis testing, this is the portion of the sample space of a test statistic that will lead to rejection of the null hypothesis.

Density function
Another name for a probability density function

Design matrix
A matrix that provides the tests that are to be conducted in an experiment.

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

Expected value
The expected value of a random variable X is its longterm average or mean value. In the continuous case, the expected value of X is E X xf x dx ( ) = ?? ( ) ? ? where f ( ) x is the density function of the random variable X.

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

Fractional factorial experiment
A type of factorial experiment in which not all possible treatment combinations are run. This is usually done to reduce the size of an experiment with several factors.

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

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.