The following table contains information on matched sample values whose differences are normally distributed. Use Table ...

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The following table contains information on matched sample values whose differences are normally distributed. Use Table 2.

NumberSample 1Sample 2
1 18 22
2 12 13
3 20 24
4 21 20
5 19 22
6 13 19
7 18 16
8 17 19

a.

Construct the 95% confidence interval for the mean difference ?D. (Negative values should be indicated by a minus sign. Round all intermediate calculations to at least 4 decimal places. Round your answers to 2 decimal places.)

Confidence interval is n/r to n/r















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