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Suppose you needed to test the claim that the two samples described below come from populations with...

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Statistics

Suppose you needed totest the claim that the two samples described below come frompopulations with the same mean. Assume that the samples areindependent simple random samples.

Sample 1: n1=17, x¯¯¯1=24.7,s1=3.05n1=17, x¯1=24.7, s1=3.05

Sample 2: n2=7, x¯¯¯2=22.5,s2=4.62n2=7, x¯2=22.5, s2=4.62

Compute:

(a) the degrees of freedom:

(b) the test statistic (use Sample 1 −− Sample 2):

(c) he P-value:

Answer & Explanation Solved by verified expert
4.0 Ratings (671 Votes)
GivenSample 1 n117 x1247 s1305Sample 2 n27 x2225 s2462To testH0 1 2 two populations have same meanH1 1 2 two populations mean differ significantly we have n1 17 1247 s1 305n27 2225 s2462Test statistics TS    See Answer
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