# SOLUTION: Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give (a) the Z-score cutoff (or cutoffs) on the comparison

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give (a) the Z-score cutoff (or cutoffs) on the comparison      Log On

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 Algebra: Probability and statistics Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Probability-and-statistics Question 460651: Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give (a) the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected, (b) the Z score on the comparison distribution for the sample score, and (c) your conclusion. Assume that all populations are normally distributed. Study / µ / σ / Sample Score / p / Tails of Test A / 100.0 / 10.0 / 80 / .05 / 1 (low predicted) B / 100.0 / 20.0 / 80 / .01 / 2 C / 74.3 / 11.8 / 80 / .01 / 2 D / 16.9 / 1.2 / 80 / .05 / 1 (low predicted) E / 88.1 / 12.7 / 80 / .05 / 2 Answer by edjones(7569)   (Show Source): You can put this solution on YOUR website!A)/ 100.0 / 10.0 / 80 / .05 / 1 (low predicted) -1.645 z-score cutoff z=(80-100)/10=-2 reject the null hypothesis. . Ed