- 8.3.1: Statistical Literacy For a binomial experiment with r successes out...
- 8.3.2: Statistical Literacy In order to use a normal distribution to compu...
- 8.3.3: Statistical Literacy In order to use a normal distribution to compu...
- 8.3.4: Critical Thinking You want to conduct a survey to determine the pro...
- 8.3.5: Myers-Briggs: Actors Isabel Myers was a pioneer in the study of per...
- 8.3.6: Myers-Briggs: Judges In a random sample of 519 judges, it was found...
- 8.3.7: Navajo Lifestyle: Traditional Hogans A random sample of 5222 perman...
- 8.3.8: Archaeology: Pottery Santa Fe black-on-white is a type of pottery c...
- 8.3.9: Health Care: Colorado Physicians A random sample of 5792 physicians...
- 8.3.10: Law Enforcement: Escaped Convicts Case studies showed that out of 1...
- 8.3.11: Fishing: Barbless Hooks In a combined study of northern pike, cutth...
- 8.3.12: Physicians: Solo Practice A random sample of 328 medical doctors sh...
- 8.3.13: Marketing: Customer Loyalty In a marketing survey, a random sample ...
- 8.3.14: Marketing: Bargain Hunters In a marketing survey, a random sample o...
- 8.3.15: Lifestyle: Smoking In a survey of 1000 large corporations, 250 said...
- 8.3.16: Opinion Poll: Crime and Violence A New York Times/CBS poll asked th...
- 8.3.17: Medical: Blood Type A random sample of medical files is used to est...
- 8.3.18: Business: Phone Contact How hard is it to reach a businessperson by...
- 8.3.19: Campus Life: Coeds What percentage of your campus student body is f...
- 8.3.20: Small Business: Bankruptcy The National Council of Small Businesses...
- 8.3.21: Brain Teaser: Algebra Why do we use 1/4 in place of in formula (22)...
- 8.3.22: Expand Your Knowledge: Plus Four Confidence Interval for a Single P...
- 8.3.23: Critical Thinking: Different Confidence Levels (a) Suppose a 95% co...
- 8.3.24: Expand Your Knowledge: Sample Size, Difference of Means What about ...
- 8.3.25: Expand Your Knowledge: Sample Size, Difference of Proportions What ...
- 8.3.26: Expand Your Knowledge: Software Approximation for Degrees of Freedo...
- 8.3.27: Expand Your Knowledge: Pooled Two-Sample Procedures Under the condi...
Solutions for Chapter 8.3: ESTIMATION
Full solutions for Understandable Statistics | 9th Edition
In a fractional factorial experiment when certain factor effects cannot be estimated uniquely, they are said to be aliased.
Attribute control chart
Any control chart for a discrete random variable. See Variables control chart.
Sequences of independent trials with only two outcomes, generally called “success” and “failure,” in which the probability of success remains constant.
Central limit theorem
The simplest form of the central limit theorem states that the sum of n independently distributed random variables will tend to be normally distributed as n becomes large. It is a necessary and suficient condition that none of the variances of the individual random variables are large in comparison to their sum. There are more general forms of the central theorem that allow ininite variances and correlated random variables, and there is a multivariate version of the theorem.
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.
Chi-square (or chi-squared) random variable
A continuous random variable that results from the sum of squares of independent standard normal random variables. It is a special case of a gamma random variable.
The mean of the conditional probability distribution of a random variable.
If it is possible to write a probability statement of the form PL U ( ) ? ? ? ? = ?1 where L and U are functions of only the sample data and ? is a parameter, then the interval between L and U is called a conidence interval (or a 100 1( )% ? ? conidence interval). The interpretation is that a statement that the parameter ? lies in this interval will be true 100 1( )% ? ? of the times that such a statement is made
Another term for the conidence coeficient.
A method to derive the probability density function of the sum of two independent random variables from an integral (or sum) of probability density (or mass) functions.
Defect concentration diagram
A quality tool that graphically shows the location of defects on a part or in a process.
Deming’s 14 points.
A management philosophy promoted by W. Edwards Deming that emphasizes the importance of change and quality
A matrix that provides the tests that are to be conducted in an experiment.
An experiment in which the tests are planned in advance and the plans usually incorporate statistical models. See Experiment
Discrete uniform random variable
A discrete random variable with a inite range and constant probability mass function.
Distribution free method(s)
Any method of inference (hypothesis testing or conidence interval construction) that does not depend on the form of the underlying distribution of the observations. Sometimes called nonparametric method(s).
Estimate (or point estimate)
The numerical value of a point estimator.
The expected value of a random variable X is its long-term 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.
Exponential random variable
A series of tests in which changes are made to the system under study
A method of variable selection in regression, where variables are inserted one at a time into the model until no other variables that contribute signiicantly to the model can be found.