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In a survey of 368 people, 81 drink milk straight from the milk carton. For the sample, find the sample proportion, the margin of error, and the interval likely to contain the true population proportion.
a. 22%; b. 5%; c. 17% to 27% a. 28%; b. 11%; c. 17% to 39% a. 28%; b. 5%; c. 23% to 33% a. 22%; b. 11%; c. 11% to 33%
Those 4 are the possible answers
phat = 81/368 = 0.2201086957 ≈ 0.22 q = 1 - 0.2201086957 = 0.7798913043 = 0.78 P(0.22 - 1.96*sqrt(0.22*0.78/368) < π < 0.22 + 1.96*sqrt(0.22*0.78/368) ) = 0.95 P(0.22 - 0.04 < π < 0.22 + 0.04) = 0.95 P(0.18 < π < 0.26) = 0.95 sample proportion = 0.18 margin of error = 0.04
can u help me
which one of those answers is it though
Gracie?
idk
ok easier one The tangent of an angle is equal to the ratio of its sine divided by its cosine.
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