A1 to A173 are random (M and W) Assume M is 83 and W is 90 Sheet 3: Operational

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A1 to A173 are random (M and W)

Assume M is 83 and W is 90

Sheet 3: Operational hypothesis: the proportion of male births is approximately 0.52. That is, of one hundred births on average fifty-two are male. The sex of births in Lahore for one particular day are tabulated in column A. (Note: this is fictitious, but based on actual occurrence.) We will accept the proportion of male births here as occurring naturally if it is within a symmetric about the mean 90% confidence interval for the operational hypothesis. Enter in cell G1 the observed proportion of ale births. In cells D1:D2 enter the lower and upper limits of this confidence interval. In cell D4 enter YES or NO to indicate whether we accept the proportion of male births on that day as occurring naturally.

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A1 to A173 are random (M and W) Assume M is 83 and W is 90 Sheet 3: Operational

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