HP 39g Master Manual page 5

The Stats Aplet - Univariate Data ............................................................ 122
Uni vs. Bi-variate data ................................................................................................ 122
Clearing data .............................................................................................................. 122
Sorting data ................................................................................................................ 123
The STATS key .......................................................................................................... 123
Functions of columns ................................................................................................. 124
Registering columns as 'in use'.................................................................................. 124
Working with frequency tables ................................................................................... 125
Auto scale................................................................................................................... 125
Plot Setup options ...................................................................................................... 126
Box and whisker graphs ............................................................................................. 126
The effect of HRng ..................................................................................................... 127
Grouped data & HWidth ............................................................................................. 127
Tips & Tricks - Univariate Data................................................................ 129
New columns as functions of old................................................................................ 129
Simulating Dice .......................................................................................................... 129
Simulating Random Variables .................................................................................... 130
The Stats Aplet - Bivariate Data .............................................................. 132
Uni vs. Bi-variate data ................................................................................................ 132
Clearing data .............................................................................................................. 132
Entering data as ordered pairs ................................................................................... 133
Adjusting the symbols used to plot points .................................................................. 133
The cursor .................................................................................................................. 133
Sorting paired columns............................................................................................... 134
Specifying the fit model .............................................................................................. 134
Multiple data sets ....................................................................................................... 134
Choosing from available fit models ............................................................................ 135
The User Defined model ............................................................................................ 135
Connected data .......................................................................................................... 136
Two Variable Statistics ............................................................................................... 137
Showing the line of best fit ......................................................................................... 138
Predicting using PREDY .............................................................................................. 140
Predicting using the PLOT view.................................................................................. 140
RelErr as a measure of non-linear fit....................................................................... 141
Tips & Tricks - Bivariate Data .................................................................. 143
New columns as functions of old................................................................................ 143
Using values from
Obtaining coefficients from the fit model .................................................................... 145
Finding Fit Coefficients............................................................................................... 145
Correct interpretation of the PREDX function ............................................................ 146
Assigning rank orders to sets of data......................................................................... 147
Using Stats to find equations from point data ............................................................ 148
The Inference aplet................................................................................... 150
Using the Chi2 test on a frequency table ................................................................... 150
Hypothesis test: T-Test 1-µ ....................................................................................... 151
Confidence interval: T-Int 1-µ .................................................................................... 153
Hypothesis test: T-Test µ
Hypothesis test: Z-Test 1-µ ....................................................................................... 156
Tips & Tricks - Inference .......................................................................... 158
Importing from a frequency table ............................................................................... 158
in calculations .................................................................. 143
-µ ..................................................................................... 154
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