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Psychology 201 Hypothesis Testing Answer Sheet Name_______________________________________ Assignment_______________________________________________________________ Problem _________ Describe the population or populations whose characteristics are being investigated. Null Hypothesis:_____________________________________________________________________ Formally state the Alternative Hypothesis:________________________________________________________________ Give the name and the formula of the test statistic that will be employed to test the null hypothesis. What significance level will you use to separate "likely" value from "unlikely" values of the test statistic? Hint: .05 is a popular choice.________________________________________________________________________________ What is the value of the test statistic computed from your data? ___________________________________________________________________ What is the probability of a value as extreme as the above value if the null hypothesis were true, i.e., the p-value?______________________________________________________ What is your conclusion? Do you reject or not reject the null hypothesis? _____________________________________________________________ What are the upper and lower limits of a 95% confidence interval appropriate for the problem? Present them in a sentence, with standard interpretive language. (Not required if the statistical test is chi-square or analysis of variance.) (For ANOVA problems, report post hoc comparisons.) State the implications of your conclusion for the problem you were asked to solve. That is, relate your statistical conclusion to the problem. 03/07/16