Do endoflife health care expenditures increase with age The

Do end-of-life health care expenditures increase with age? The variable costT is the average expenditure, in thousands of dollars; the variable age is age at death. What is the null hypothesis in this case? What is the best fitting straight line? What proportion of the variability in costT has been explained by fitting this line? How strong is the evidence that the slope is different from zero?

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