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##### Calculate the upper value (limit) in the confidence interval estimate

**Description**

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**Question**

Calculate the upper value (limit) in the confidence interval estimate of the difference between the means of two populations where the mean is 15.3 for a sample of 16 from the first population with a corresponding sample standard deviation of 3.0, the mean is 15.7 from a sample of 17 from the second population with a corresponding sample standard deviation of 3.8, and the level of significance is 0.07. Use the critical value of t to four decimals, as shown in the table in the textbook, and enter your response (final answer) to two decimals (i.e. -2.12). We are assuming the populations are normally distributed, that they have equal variances, and that the samples are independent.

Paper#31750 | Written in 18-Jul-2015

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