1. Evaluate completely the following statement: The issue is not whether there is variation,but whether the variation is significant. Be specific with data types from the significanceand t-tests, analysis of variances with perhaps AVOVA, and nominal data. Your answershould include an understanding of statistical confidence and the null hypothesis.AnswerAlthough an activity which creates numerical valuations to help approximate the 'true'worth can easily prove variant replicated a number of occasions, statistically talking wewould like to determine when the variant is considerable.To put it differently, whenever we start using a precise choosing method to estimate themean and standard deviation of a population how can most of us determine when theexamples usually are adviser on the anticipated indicate and also regular change? For thiswe could pick a great human judgments worth, for example 5%, if the worth may seem tovary from your anticipated evaluate, we now have the 95% confidence that we can easilyreject your null hypothesis.For example, if we expect a group of students to score a mean of 50 and standarddeviation of 10, we can begin a SAMPLING process and calculate the mean and SD ofthe population. We expect variation and would allow for VARIATION; the sample isunlikely to have a mean of 50. BUT IF THE difference is SIGNIFICANT, we reject thenull Ho.2. Can you draw a Spearmans correlation between the variables specific age and jobsatisfaction ...
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