Lab06_Fall2011

Lab06_Fall2011 - . (This is a two sided test) 2. Define the...

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EXST 7003 Lab 06 Fall 2011 Name EXST 7003, Lab 06: More on Hypothesis Testing Week of: October 17 – October 21 DUE: October 25 (section 1) or October 28 (section 2 or 3) One Sample T-Tests In this lab we will conduct the one sample t-test in Lab 05 by hand. Please hand-write your answers and turn in this packet. You will not need SAS for this lab. SAS code and results from the t-test in Lab 05 are as follows: PROC TTEST data =one H0 = 5 ALPHA = .01 ; VAR lsales; l 3 'Proc ttest test of lsales equal to 5 at 0.01' ; Tit e RUN ; The TTEST Procedure Statistics Variable N Lower CL Mean Mean Upper CL Mean Lower CL Std Dev Std Dev Upper CL Std Dev Std Err Minimum Maximum lsales 206 9.7587 10.02 10.281 1.2771 1.4408 1.6484 0.1004 5.7838 13.538 T-Tests Variable DF t Value Pr > |t| lsales 205 50.01 <.0001 1
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EXST 7003 Lab 06 Fall 2011 1. Specify the proper set of hypotheses, H 0 and H 1 , and the significance level
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Unformatted text preview: . (This is a two sided test) 2. Define the sample based test statistic ( give the formula ) and the rejection region for H . 3. Use the sample statistics given in the above output to calculate the test statistic by hand and confirm the results given in the SAS output. (Some rounding error will occur) 4. What is the associated pvalue for this test statistic, and what does it mean? ( I am not asking for a conclusion yet, just an explanation of the meaning of the pvalue ) 2 EXST 7003 Lab 06 Fall 2011 5. Use the sample statistics given in the above output to calculate the appropriate confidence interval for by hand and confirm the results given in the SAS output. 6. Make a decision to reject or fail to reject H 0. 7. Interpret the results in the language of the problem. 3...
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This note was uploaded on 12/28/2011 for the course EXST 7003 taught by Professor Moser,e during the Fall '08 term at LSU.

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Lab06_Fall2011 - . (This is a two sided test) 2. Define the...

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