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OpenStudy (dboyette):
consider a population with U=77.6 and o=5.63. a. calculate the z-score for x=76.1 from a sample size of 52. b. could this z-score be used in calculation probabilities using the the table?
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OpenStudy (amistre64):
just modify the original equaiton by multiplying by sqrt(52) i believe
OpenStudy (amistre64):
76.1-77.6 --------- * sqrt(52) = zscore 5.63
OpenStudy (dboyette):
I see
OpenStudy (amistre64):
-1.92 is what i get if i do that. It has something to do with the size of the sample being so small
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