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NASA is conducting an experiment to find out the fraction of people who black out at...

NASA is conducting an experiment to find out the fraction of people who black out at G forces greater than 6. In an earlier study, the population proportion was estimated to be 0.43. How large a sample would be required in order to estimate the fraction of people who black out at 6 or more Gs at the 80% confidence level with an error of at most 0.04? Round your answer up to the next integer.

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Answer #1

Refer Standard normal table/Z-table or use excel function "=NORM.S.INV((1-0.10))" to find the Z-value.

Plug in all the calculated values in the above formula.

Round the value to the nearest whole number.

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