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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 50 nonprofits, the mean one-time gift donation in the past year was $ 37, with a standard deviation of $99.

Complete parts a and b below.

a. Construct a 90% confidence interval estimate for the population one-time gift donation.

answer box ? ? ? answer box

(Type integers or decimals rounded to two decimal places as needed.)

could you explain it to where I can understand how you got each answer and parts? Thank you

Math   Statistics-And-Probability   
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