The heights of 8 Japanese men were taken with sample mean of 155 cm (centimeters) and standard deviation 5 cm. The heights of 6 Japanese women were taken with sample mean of 130 cm and standard deviation 4 cm. Assuming that the population standard deviations for heights of Japanese men and women are both the same, construct the 95% confidence interval for the difference in mean heights between Japanese men and women.

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The heights of 8 Japanese men were taken with sample mean of 155 cm (centimeters) and standard deviation 5 cm. The heights of 6 Japanese women were taken with sample mean of 130 cm and standard deviation 4 cm. Assuming that the population standard deviations for heights of Japanese men and women are both the same, construct the 95% confidence interval for the difference in mean heights between Japanese men and women.

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