- 2.2.1E: DNA molecules consist of chemically linked sequences of the bases a...
- 2.2.2E: A metallurgist is designing an experiment to determine the effect o...
- 2.2.3E: The article “Improved Bioequivalence Assessment of Topical Dermatol...
- 2.2.4E: A group of 18 people have gotten together to play baseball. They wi...
- 2.2.5E: In horse racing, one can make a trifecta bet by specifying which ho...
- 2.2.6E: A college math department consisting of 10 faculty members must cho...
- 2.2.7E: A test consists of 15 questions. Ten are true-false questions, and ...
- 2.2.8E: In a certain state, license plates consist of three letters followe...
- 2.2.9E: A computer password consists of eight characters.a. How many differ...
- 2.2.10E: A company has hired 15 new employees, and must assign 6 to the day ...
- 2.2.11E: One drawer in a dresser contains 8 blue socks and 6 white socks. A ...
- 2.2.12E: A drawer contains 6 red socks, 4 green socks, and 2 black socks. Tw...
Solutions for Chapter 2.2: Statistics for Engineers and Scientists 4th Edition
Full solutions for Statistics for Engineers and Scientists | 4th Edition
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.
Binomial random variable
A discrete random variable that equals the number of successes in a ixed number of Bernoulli trials.
Box plot (or box and whisker plot)
A graphical display of data in which the box contains the middle 50% of the data (the interquartile range) with the median dividing it, and the whiskers extend to the smallest and largest values (or some deined lower and upper limits).
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.
Any test of signiicance based on the chi-square distribution. The most common chi-square 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
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.
See Control chart.
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 .
Formulas used to determine the number of elements in sample spaces and events.
A parameter in a tabular CUSUM algorithm that is determined from a trade-off between false alarms and the detection of assignable causes.
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.
Deming’s 14 points.
A management philosophy promoted by W. Edwards Deming that emphasizes the importance of change and quality
Discrete random variable
A random variable with a inite (or countably ininite) range.
Another name for a cumulative distribution function.
Estimate (or point estimate)
The numerical value of a point estimator.
Estimator (or point estimator)
A procedure for producing an estimate of a parameter of interest. An estimator is usually a function of only sample data values, and when these data values are available, it results in an estimate of the parameter of interest.
The distribution of the random variable deined as the ratio of two independent chi-square random variables, each divided by its number of degrees of freedom.
A signal from a control chart when no assignable causes are present
An arrangement of the frequencies of observations in a sample or population according to the values that the observations take on