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					Page 313 Problem 44
                      Confidence Interval Estimate for the Mean

                                         Data
                      Population Standard Deviation             38.6
                      Sample Mean                             154.17
                      Sample Size                                 55
                      Confidence Level                          99%

                                  Intermediate Calculations
                      Standard Error of the Mean             5.204823
                      Z Value                               -2.575829
                      Interval Half Width                    13.40674

                                  Confidence Interval
                      Interval Lower Limit                 140.7633
                      Interval Upper Limit                 167.5767



                                   Since the standard deviation is larger the Margin of Erro
                                   confidence interval is larger for problem 46 due to the l
                                   deviation.
                          Problem 46
                          Confidence Interval Estimate for the Mean

                                             Data
                          Population Standard Deviation             42.5
                          Sample Mean                             154.17
                          Sample Size                                 55
                          Confidence Level                          99%

                                      Intermediate Calculations
                          Standard Error of the Mean             5.730699
                          Z Value                               -2.575829
                          Interval Half Width                     14.7613

                                      Confidence Interval
                          Interval Lower Limit                 139.4087
                          Interval Upper Limit                 168.9313



viation is larger the Margin of Error is larger. The
larger for problem 46 due to the larger standard

				
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