certain HMO is attempting to show the benefits of managed care to an dor in meas

Question

certain HMO is attempting to show the benefits of managed care to an dor in measuring the cost-effectiveness physicians To investigate this, the HMO obtainedindependert random samples of 26physicians fem each he tree certifcation levels Board cessed (C d board elgele of E), and Uncertified, board ineligible (l) and recorded the total per member per month dharges lot each (a total of 26 physicians) In order to compare the mean charges for the three groups, the data wilbe sutiededo an nalysis of variance. Write the nul hypothesis tested by the ANONA D. None of the above.

Explanation / Answer

The answer is A. heteroskedasticity is a problem in this question because the variability of the variables is unequal accrosss the range

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