Technology Appendix - McGraw-Hill Ryerson
Technology Appendix - McGraw-Hill Ryerson
Technology Appendix - McGraw-Hill Ryerson
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You can be 90% certain that the population mean lies betweenabout 71.5 and 79.3. In this same manner, you can calculateconfidence intervals for other confidence levels.The calculation can also be performed using raw Data.Press STAT and go to the TESTS menu. Select 7:ZInterval.This time select the Data option. Note that the parameters youtyped in are still there.Note that the sample data must be entered in L1 (or whateverlist you specify) before attempting to Calculate theconfidence interval.Top MenuMHR • Mathematics of Data Management <strong>Appendix</strong> B (Revised 2010) Page 44 of 129
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