The following data give the ages of 36 randomly selected family caregivers of older parents in the United States: 55 53 47 47 49 43 47 40 48 41 44 51 48 43 50 49 47 42 42 47 47 49 46 46 43 41 45 51 44 48 43 50 53 44 49 53 Assuming normality, (a) Determine a 95% confidence interval for the mean ages of all US caregivers. (b) Determine a one-sided lower and one-sided upper 95% confidence interval for the mean ages of all US caregivers

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