Skill level for the entire population of program

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A sample of 25 participants in a parenting skills class are administered a test to measure their skill levels on a 200 point skills test before entering the class. Results indicate that the mean (X-) skill level for the sample is 86, with a standard deviation (s) of 12. Based on that information, develop a 95% con?dence interval to provide an estimate of the mean skill level for the entire population of program participants.

Reference no: EM131014693

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