Mathematics, 05.05.2020 22:36, mdaniella522
A relief fund is set up to collect donations for the families affected by recent storms. A random sample of 400 people shows that 28% of those 200 who were contacted by telephone actually made contributions compared to only 18% of the 200 who received first class mail requests. Which formula calculates the 95% confidence interval for the difference in the proportions of people who make donations if contacted by telephone or first class mail?
Answers: 2
Mathematics, 21.06.2019 22:30, lauren21bunch
Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?
Answers: 2
Mathematics, 21.06.2019 23:00, kcarstensen59070
Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?
Answers: 1
A relief fund is set up to collect donations for the families affected by recent storms. A random sa...
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