 34.1: For Exercises 16, identify the fivenumber summary and find the int...
 34.2: For Exercises 16, identify the fivenumber summary and find the int...
 34.3: For Exercises 16, identify the fivenumber summary and find the int...
 34.4: For Exercises 16, identify the fivenumber summary and find the int...
 34.5: For Exercises 16, identify the fivenumber summary and find the int...
 34.6: For Exercises 16, identify the fivenumber summary and find the int...
 34.7: For Exercises 710, use each boxplot to identify the maximum value, ...
 34.8: For Exercises 710, use each boxplot to identify the maximum value, ...
 34.9: For Exercises 710, use each boxplot to identify the maximum value, ...
 34.10: For Exercises 710, use each boxplot to identify the maximum value, ...
 34.11: Earned Run AverageNumber of Games Pitched Construct a boxplot for t...
 34.12: Innings Pitched Construct a boxplot for the following data which re...
 34.13: State Sites for Frogwatch Construct a boxplot for these numbers of ...
 34.14: Median Household Incomes Construct a boxplot and comment on the ske...
 34.15: Tornadoes in 2005 Construct a boxplot and comment on its skewness f...
 34.16: Size of Dams These data represent the volumes in cubic yards of the...
 34.17: Number of Tornadoes A fourmonth record for the number of tornadoes...
 34.18: Unhealthful Smog Days A modified boxplot can be drawn by placing a ...
Solutions for Chapter 34: Data Description
Full solutions for Elementary Statistics: A Step by Step Approach  7th Edition
ISBN: 9780073534978
Solutions for Chapter 34: Data Description
Get Full SolutionsThis textbook survival guide was created for the textbook: Elementary Statistics: A Step by Step Approach, edition: 7. This expansive textbook survival guide covers the following chapters and their solutions. Elementary Statistics: A Step by Step Approach was written by and is associated to the ISBN: 9780073534978. Since 18 problems in chapter 34: Data Description have been answered, more than 13283 students have viewed full stepbystep solutions from this chapter. Chapter 34: Data Description includes 18 full stepbystep solutions.

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

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.

Alternative hypothesis
In statistical hypothesis testing, this is a hypothesis other than the one that is being tested. The alternative hypothesis contains feasible conditions, whereas the null hypothesis speciies conditions that are under test

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

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

Causal variable
When y fx = ( ) and y is considered to be caused by x, x is sometimes called a causal variable

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

Completely randomized design (or experiment)
A type of experimental design in which the treatments or design factors are assigned to the experimental units in a random manner. In designed experiments, a completely randomized design results from running all of the treatment combinations in random order.

Continuity correction.
A correction factor used to improve the approximation to binomial probabilities from a normal distribution.

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 sum control chart (CUSUM)
A control chart in which the point plotted at time t is the sum of the measured deviations from target for all statistics up to time t

Curvilinear regression
An expression sometimes used for nonlinear regression models or polynomial regression models.

Defect concentration diagram
A quality tool that graphically shows the location of defects on a part or in a process.

Defectsperunit control chart
See U 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.

Designed experiment
An experiment in which the tests are planned in advance and the plans usually incorporate statistical models. See Experiment

Enumerative study
A study in which a sample from a population is used to make inference to the population. See Analytic study

Error propagation
An analysis of how the variance of the random variable that represents that output of a system depends on the variances of the inputs. A formula exists when the output is a linear function of the inputs and the formula is simpliied if the inputs are assumed to be independent.

Estimate (or point estimate)
The numerical value of a point estimator.

Firstorder model
A model that contains only irstorder terms. For example, the irstorder response surface model in two variables is y xx = + ?? ? ? 0 11 2 2 + + . A irstorder model is also called a main effects model