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A random sample of U S adults had both their armspan and their height measured...

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A random sample of U S adults had both their armspan and their height measured in centimeters For each person the difference was calculated as follows difference armspan height A 95 confidence interval for the difference was calculated to be 6 1 3 5 Which of the following is true We can be 95 confident that for the people in the sample the mean armspan is between 3 5 and 6 1 centimeters less than the mean height 95 of U S adults have armspans between 3 5 and 6 1 centimeters less than their height On average people s heights are less than their armspans In the population of all U S adults we can be 95 confident that on average a person s armspan is between 3 5 and 6 1 centimeters less than their height

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