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Find confidence interval for the parameter of interest

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Reference no: EM131554992

Question: Confidence Interval for the Difference Between two Population MeansPlease show solution:Question:A study was made to determine if the subject matter in a Physics course is better understood when a laboratory constitutes part of the course. Students were allowed to choose between a 3-semester-hour course without laboratory and 4-semester-hour course with laboratory. In the section with laboratory, 11 students made an average grade of 85 with a standard deviation of 4.7 and in the section without laboratory, 17 students made an average grade of 79 with a standard deviation of 6.1. Find a 98% confidence interval for the parameter of interest. Assume the populations to be approximately normally distributed with equal variance.

Reference no: EM131554992

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