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Advanced Placement (AP), 10.01.2021 21:10 cody1097

A children's cancer research fund has been set up to collect donations for the treatment and research of the disease. A random sample of 600 people shows
that 47% of the 300 who were contacted by telephone actually made
contributions, compared with only 34% of the 300 who received email
requests. Which of the formulas calculates the 98% confidence interval for the
difference in the proportions of people who make donations when contacted
by telephone versus those contacted by email?

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