Calculate the test-statistic, t with the following information. n1 = 60, x1 = 2.98, s1 = 0.61 n2 = 40, x2 = 2.6, s2 = 0.92 Rounded to 2 decimal places.
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Step 1
Calculate the pooled standard deviation (sp): sp = sqrt(((n1-1)s1^2 + (n2-1)s2^2)/(n1+n2-2)) sp = sqrt(((60-1)(0.61)^2 + (40-1)(0.92)^2)/(60+40-2)) sp = 0.776 Show more…
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