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Mathematics, 21.04.2020 18:32 anilauferc
A researcher collects two independent random samples of sizes n1=31n1=31 and n2=36n2=36 , and computes the means, xβ―β―β―1xΒ―1 and xβ―β―β―2,xΒ―2, and the standard deviations, s1s1 and s2,s2, of each sample. She plans to use a tt βtest to determine if there is a difference between the two population means, Β΅1ΞΌ1 and Β΅2.ΞΌ2. She does not know the population standard deviations, nor does she have any reason to believe that they are equal. Using the most conservative approach, calculate how many degrees of freedom, df, are associated with this hypothesis test. Express your answer as an integer.
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A researcher collects two independent random samples of sizes n1=31n1=31 and n2=36n2=36 , and comput...
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