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Shoes Refer to Exercise 15. Does the confidence interval give convincing evidence of a difference in the population mean number of pairs of shoes for boys and girls at the school? Justify your answer.

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Explaining confidence :A 95% confidence interval for the mean body mass index (BMI) of young

women is 26.8 ± 0.6.

(a) We are confident that 95% of all young women have BMI between 26.2 and 27.4.

(b) We are 95% confident that future samples of young women will have mean BMI between

26.2 and 27.4.

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