A company revealed their latest survey about the population beliefs. The survey reported 28 % of 2003 Turkish people said they believed in UFOS. that a. Calculate and interpret a confidence interval at the 95% confidence level for the proportion of all adult Turkish who believe in UFOS. b. What sample size would be required for the width of a 95% CI to be at most 0.05?

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A company revealed their latest survey about the population beliefs. The survey reported
28 % of 2003 Turkish people said they believed in UFOS.
that
a. Calculate and interpret a confidence interval at the 95% confidence level for the proportion of
all adult Turkish who believe in UFOS.
b. What sample size would be required for the width of a 95% CI to be at most 0.05?
Transcribed Image Text:A company revealed their latest survey about the population beliefs. The survey reported 28 % of 2003 Turkish people said they believed in UFOS. that a. Calculate and interpret a confidence interval at the 95% confidence level for the proportion of all adult Turkish who believe in UFOS. b. What sample size would be required for the width of a 95% CI to be at most 0.05?
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