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I have Standard Deviation and Mean of 2 sets of data. Based on the data, how...

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Basic Math

I have Standard Deviation and Mean of 2 sets of data.
Based on the data, how can we infer at the 5% significance levelthat the score of individuals in the 4th year is better than theindividuals in 1st year?

average71.2976.98
S.D.8.588.119
Year 1Year 4

The sample size is 430

Answer & Explanation Solved by verified expert
4.5 Ratings (621 Votes)
Answer In order to determine if the score of the individuals in 4th year is better than the score of the individuals in 1st year we construct our null and alternative hypotheses as H0 mu1 mu2 vs Ha mu1 mu2 where mu1    See Answer
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