A recent survey of 54,000 randomly selected adults studied the religious affiliations of Americans. The survey interviewed 645 people in Oregon. Suppose that this is a simple random sample of adult residents of Oregon. Of these 645 people,116 said they claimed no religious identity. A 95% confidence interval for the proportion of all residents of Oregon who claim no religious identity is closest to A 0.16 to 0.20 B 0.15 to 0.21 C 0.14 to 0.22 D 0.13 to 0.23

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Q: If the alpha level is .05, then the confidence level is ?

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