Number of subjects = 25 Mean of Sample = 77 Standard Deviation (s) = 12 sem = 2.4 df = 24
The claim is that population mean is less than 80 * > 80 So our H0 (null hupotheis) is * > 80 > qt(.95,24) [1] 1.710882 > qt(0.05, 24) [1] -1.710882 tstat = -1.25 on t24 falls between 1.711 (.95,24) and *1.711 (.005,24) How Could I sketch t curve for the above data where my * would be at the center? Best Regards Isaac Dr. I. Barjis Assistant Professor Summer and Evening Coordinator Department of Biological Sciences Room P313 300 Jay Street Brooklyn, NY 11201 Phone: (718)2605285 Fax: (718)2548680 Fax: (718) 254-8595 Department Office http://websupport1.citytech.cuny.edu/Faculty/ibarjis
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