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A survey of nonprofit organizations showed that online fundraising has increased in the past year. Based...

A survey of nonprofit organizations showed that online fundraising has increased in the past year. Based on a random sample of 55 nonprofits, the mean one-time gift donation in the past year was $75, with a standard deviation of $9. Construct a 99% confidence interval estimate for the population mean one-time gift donation.?

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2- tehshicct 991_is_2.526 C _x + z Jn 75 + 2.576(१) 75 + 3.1261 75 - 3.1261 7 5 +3. J26। 7.8239 to 78. 1261

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