7.26 Diamonds, Part II. In Exercise 7.24, we discussed diamond prices (standardized by weight) for dia- monds with weights 0. 99 carats and 1 carat. See the table for summary statistics, and then construct a 95% confidence interval for the average difference between the standardized prices of 0.99 and 1 carat diamonds. You may assume the conditions for inference are met. 0.99 carats 1 carat Mean $44.51 $56.81 SD $13.32 $16.13 23 23

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