Consider the diamond prices (standardized by weight) for diamonds with weights 0.99 carat 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. (Round your answers to two decimal places.)

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Consider the diamond prices (standardized by weight) for diamonds with weights 0.99 carat 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. (Round your answers to two
decimal places.)
0.99 carat
1 carat
Mean
$43.53
$56.82
SD
$12.32
$14.11
23
23
$ -5.42
|× )
-21.16
Transcribed Image Text:Consider the diamond prices (standardized by weight) for diamonds with weights 0.99 carat 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. (Round your answers to two decimal places.) 0.99 carat 1 carat Mean $43.53 $56.82 SD $12.32 $14.11 23 23 $ -5.42 |× ) -21.16
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