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In a study of 368 San Francisco Bay Area nonprofits, 224 reported that they are collaborating with other organizations to provide services, a necessity as nonprofit agencies are called upon to do more with less.
Construct a 95% confidence interval for the proportion of San Francisco Bay Area nonprofits that collaborated with other organizations to provide services.
Interpret the interval construct in (a).
If you wanted to conduct a follow-up study to estimate the population proportion of San Francisco Bay Area nonprofits that collaborated with other organizations to provide service to within +/- 0.01 with 95% confidence, how many Bay Area nonprofits would you survey?
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