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Tobias takes a sample of 20 different gender married couples In his sample he found...

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Tobias takes a sample of 20 different gender married couples In his sample he found that the husband was 147 68 millimeters taller on average and differences in the husband s and wife s heights had a standard deviation of 85 94 millimeters Calculate a 95 confidence interval for the mean difference between husband height and wife height Write your answers to two decimal places Confidence interval Hd

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