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Chapter 18 - Statistical Applications ,18-1
Pre-programmed statistical features ,18-1
Entering data ,18-1
Calculating single-variable statistics ,18-2
Obtaining frequency distributions ,18-5
Fitting data to a function y = f(x) ,18-10
Obtaining additional summary statistics ,18-13
Calculation of percentiles ,18-14
The STAT soft menu ,18-15
The DATA sub-menu ,18-16
The ΣPAR sub-menu ,18-16
The 1VAR sub menu ,18-17
The PLOT sub-menu ,18-17
The FIT sub-menu ,18-18
The SUMS sub-menu ,18-18
Example of STAT menu operations ,18-19
Confidence intervals ,18-22
Estimation of Confidence Intervals ,18-23
Definitions ,18-23
Confidence intervals for the population mean when the population vari-
ance is known ,18-24
Confidence intervals for the population mean when the population vari-
ance is unknown ,18-24
Confidence interval for a proportion ,18-25
Sampling distribution of differences and sums of statistics ,18-25
Confidence intervals for sums and differences of mean values ,18-26
Determining confidence intervals ,18-27
Confidence intervals for the variance ,18-33
Hypothesis testing ,18-35
Procedure for testing hypotheses ,18-35
Errors in hypothesis testing ,18-36
Inferences concerning one mean ,18-37
Inferences concerning two means ,18-39