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4. Use the following situation to answer the question: Test Scores An article in a local town newspaper discusses the results
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Now Owl test Statistic Ps w t = n-u sin. (n-1) degree of freedom. where 17 ten n in I 3 (xi -a)? n 12 sample sizewe have 10 - 200 n = 257 - 40Null QO pothesis Hyp Score Students Mean que average of aree than 261 grealen ies, u > 261 A Hernative Score Hypothesis : Meaunden Ho Now test statistici using t = t-u slun shares t 257 - 261 u 18200 fatto t -4 41/14.14 + cu 9.90 t = 1.38t. 1.38 from the data prouided. test statistic ficance 199 0.05 level free dom. of significance of Students t distribution tEvidence. and it is very convincing

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