 33.1: What is a z score? A z score tells how many standard deviations the...
 33.2: Define percentile rank. A percentile rank indicates the percentage ...
 33.3: What is the difference between a percentage and a percentile? A per...
 33.4: Define quartile. A quartile is a relative measure of position obtai...
 33.5: What is the relationship between quartiles and percentiles? Q1 _ P2...
 33.6: What is a decile? A decile is a relative measure of position obtain...
 33.7: How are deciles related to percentiles? D1 _ P10; D2 _ P20; D3 _ P3...
 33.8: To which percentile, quartile, and decile does the median correspon...
 33.9: Vacation Days If the average number of vacation days for a selectio...
 33.10: Age of Senators The average age of Senators in the 108th Congress w...
 33.11: Drivers License Exam Scores The average score on a state CDL licens...
 33.12: Teachers Salary The average teachers salary in a particular state i...
 33.13: Which has a better relative position: a score of 75 on a statistics...
 33.14: College and University Debt A student graduated from a 4year colle...
 33.15: Which score indicates the highest relative position? a. A score of ...
 33.16: College Room and Board Costs Room and board costs for selected scho...
 33.17: Using the data in Exercise 16, find the approximate percentile rank...
 33.18: Achievement Test Scores (ans) The data shown represent the scores o...
 33.19: For the data in Exercise 18, find the approximate scores that corre...
 33.20: Airplane Speeds (ans) The airborne speeds in miles per hour of 21 p...
 33.21: Using the data in Exercise 20, find the approximate percentile rank...
 33.22: Average Weekly Earnings The average weekly earnings in dollars for ...
 33.23: For the data from Exercise 22, what value corresponds to the 40th p...
 33.24: Test Scores Find the percentile rank for each test score in the dat...
 33.25: In Exercise 24, what value corresponds to the 60th percentile? 47
 33.26: Hurricane Damage Find the percentile rank for each value in the dat...
 33.27: What value in Exercise 26 corresponds to the 40th percentile? 2.1
 33.28: Test Scores Find the percentile rank for each test score in the dat...
 33.29: What test score in Exercise 28 corresponds to the 33rd percentile? 12
 33.30: Using the procedure shown in Example 337, check each data set for o...
 33.31: Another measure of average is called the midquartile; it is the num...
Solutions for Chapter 33: Measures of Position
Full solutions for Elementary Statistics: A Step by Step Approach 8th ed.  8th Edition
ISBN: 9780073386102
Solutions for Chapter 33: Measures of Position
Get Full SolutionsSince 31 problems in chapter 33: Measures of Position have been answered, more than 11846 students have viewed full stepbystep solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Elementary Statistics: A Step by Step Approach 8th ed., edition: 8. Elementary Statistics: A Step by Step Approach 8th ed. was written by Patricia and is associated to the ISBN: 9780073386102. Chapter 33: Measures of Position includes 31 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

Arithmetic mean
The arithmetic mean of a set of numbers x1 , x2 ,…, xn is their sum divided by the number of observations, or ( / )1 1 n xi t n ? = . The arithmetic mean is usually denoted by x , and is often called the average

Bias
An effect that systematically distorts a statistical result or estimate, preventing it from representing the true quantity of interest.

Bivariate normal distribution
The joint distribution of two normal random variables

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

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.

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

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

Cumulative distribution function
For a random variable X, the function of X deined as PX x ( ) ? that is used to specify the probability distribution.

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.

Dependent variable
The response variable in regression or a designed experiment.

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

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

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

Fraction defective
In statistical quality control, that portion of a number of units or the output of a process that is defective.

Gamma function
A function used in the probability density function of a gamma random variable that can be considered to extend factorials

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.
I don't want to reset my password
Need help? Contact support
Having trouble accessing your account? Let us help you, contact support at +1(510) 9441054 or support@studysoup.com
Forgot password? Reset it here