12- A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following 90% confidence interval: (0.438, 0.642). Using the information above, what total size sample would be necessary if we wanted to estimate the true proportion to within ±0.08 using 9596 confidence? a) O 150 b) 597 181122 C) d)

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12- A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of
72 statistics students generated the following 90% confidence interval: (0.438, 0.642). Using the information above,
what total size sample would be necessary if we wanted to estimate the true proportion to within ±0.08 using 95%
confidence?
150
b) 597
1811.
105
d)
420
Transcribed Image Text:12- A confidence interval was used to estimate the proportion of statistics students who are female. A random sample of 72 statistics students generated the following 90% confidence interval: (0.438, 0.642). Using the information above, what total size sample would be necessary if we wanted to estimate the true proportion to within ±0.08 using 95% confidence? 150 b) 597 1811. 105 d) 420
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