ksspiegler
07.08.2019 •
Mathematics
Apolling company conducts an annual poll of adults about political opinions. the survey asked a random sample of 308 adults whether they think things in the country are going in the right direction or in the wrong direction. 46% said that things were going in the wrong direction. complete parts a and b below. a) calculate the margin of error for the proportion of all adults who think things are going in the wrong direction for 95% confidence. b) would the margin of error be larger or smaller for 85% confidence?
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Ответ:
m = 4.58
Step-by-step explanation:
Given equation :
2.4 ( m - 3) = 3.8
So now we open the brackets and multiply the terms.
⇒ 2.4 m - 7.2 = 3.8
⇒ 2.4 m = 3.8 + 7.2
⇒ 2.4 m = 11
⇒ m =
⇒ m = 4.58
Therefore, the correct value of the variable m by solving the equation is 4.58