Your twenty observations of Dr. Knowitall reveal the following information. Assume that the estimate is to be within 9 percent of the true proportion 90 percent of the time.   Activity Observed Number of Times Observed With patient 4 Reviewing test results 3 On phone 6 Idle 3 Away on emergency 1 Not available 5 Total 22 Calculate the sample size needed to estimate the proportion of time Dr. Knowitall spends away on emergencies. (Round your answer to the whole number, the tolerance is +/-1.) Sample size needed is enter a sample size . I was previously given the answer of 83.01 and it was marked incorrect.

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