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Unformatted text preview: Step2: setup confidence level Here select “greater than” means finding Lower Confidence Bound. Final result is shown in session. Problem 3: With the following sample GPA, we are 95% that FIU student GPA is between ? and ? 3.1 3.2 3.3 3.4 Assume FIU GPA standard deviation is unknown. Solution: It is to find twosided Confidence Interval with unknown variance Step1: use 1 sample t because variance is unknown Step2: setup confidence level Here select “not equal” means finding both LCL and UCL. Final result is shown in session....
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This note was uploaded on 09/21/2010 for the course EIN 3235 taught by Professor Zhai during the Spring '10 term at FIU.
 Spring '10
 Zhai

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