What is the design of the study when we compute the z-test and t-test versus when we compute a correlation coefficient?
Answer to relevant Questions(a) What does a correlation coefficient tell you? (b) When do you compute r? (c) When do you compute rS? (d) When is linear regression used? (a) Why are there different values of tcrit when samples have different Ns? (b) What must you compute in order to find tcrit? We study the relationship between hot or cold baths and the amount of relaxation they produce. The relaxation scores from two independent samples are Sample 1 (hot): X = 43, sX = 22.79, n = 15 Sample 2 (cold): X = 39, sX = ...An experimenter investigated the effects of a sensitivity training course on a policeman’s effectiveness at resolving domestic disputes (using independent samples who had or had not completed the course). The dependent ...For the following, identify the inferential procedure to perform and the key information for answering the research question. If no inferential procedure is appropriate, indicate why. (a) Ten students are tested for ...
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