155  McCLAVE NOTES   2004 Oct 20   MATH 155 :   STATISTICS    Dr. Luft

These notes pertain to A First Course in Statistics, 8ed by McClave and Sincich.

Many problems in this book use data sets which are printed in the book, and I encourage you to key these into MINITAB worksheets to work the associated problems.  Some of the McClave data sets are available in computer files in the folder     k:\henson\math\math155\McClave\Minitab\.

Sec 2.4 Exr 2.46a The subjects are the plots (of land).

Sec 4.3 Exr 4.37  Most work is generating a binomial table in MINITAB.  What is 1/30 ?

Sec 4.3 Exr 4.41  Most work is generating a binomial table in MINITAB.  What is 1/3 ?

Sec 6.6 Exr 6.84  Data set at bottom of page; key in one column of MINITAB worksheet.

Sec 7.1 Exr 7.21  Test the hypothesis that the population means are equal.

Sec 7.4 Exr 7.51,52,59,60   The terminology about shifting distributions has these meanings:
       When two distributions are the same shape and differ only by translation, we will interpret statements about distributions being shifted as statements about the medians of the distribution which can be used as alternative or null hypotheses.
          Thus "distribution A is shifted to the right of distribution B" means  msubA > msubB,
          while "distribution A is shifted to the left of distribution B" means  msubA < msubB,
          and "distribution A is identical to distribution B" means  msubA = msubB.

Sec 7.4 Exr 7.60  Use binomial tables or a Minitab output, not SAS output in McClave.

Sec 8.4           You may type each data set below into columns of a MINITAB worksheet, or you may open the Minitab worksheet in  k:\henson\math\math155\McClave\Minitab\.  Compare the tables of data for the problems in Section 8.4.  Notice that the first column contains labels, NOT data.  It's OK to enter the column of labels, but do NOT feed them to the Chi-square test in MINITAB.

        Exr 8.49  HYPNOSIS Data set is printed at the bottom of page 427.  It is true that step (a) produces some expected counts are too small, but proceed anyway, as if they were not.  Step (b) produces a new contingency table that is 3x3.
        Exr 8.47  MOTH Data set is printed at the bottom of page 427.
        Exr 8.46  TRAVEL Data set is printed at the top of page 413.
        Exr 8.50  GANGS Data set is printed at bottom of page 428.  You do not need to put a graph in the computer test.