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# Lab04 - Stat350 Lab 4 Due Friday When turning in labs a...

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Stat350 Lab 4 Due Friday, March 25, 2011 When turning in labs: a) Please put your NAME, CLASS TIME, AND THE LAB # on your submission. b) Label each part with the problem number and put them in logical order. c) ALWAYS include your SAS code for each problem. Purposes: 1) Hypothesis tests for means 2) Hypothesis tests for two means 3) Hypothesis tests for paired data For this lab, you should reference all the code we used in lab 3, including the same datasets. The code is almost identical to the three sets we did last week with this slight modification, "H0=<claim>": SAS Learning code: proc ttest data =one alpha = 0.10 H0 = 100 ; /*Tests if the mean score is 100*/ var score; run ; SAS Learning output (look for the bolded part): Variable: score N Mean Std Dev Std Err Minimum Maximum 21 93.6667 13.9869 3.0522 57.0000 121.0 Mean 90% CL Mean Std Dev 90% CL Std Dev 93.6667 88.4025 98.9308 13.9869 11.1609 18.9891 DF t Value Pr > |t| 20 -2.08 0.0511 Note: SAS ALWAYS produces two sided P-values, so if you are doing a one- sided test, you need to divide the P-value SAS gives you by 2.

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Lab04 - Stat350 Lab 4 Due Friday When turning in labs a...

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