It means to most likely isolate the variable and you should have something like w= or a number =w
Answer:
that box means the angle is 90 degrees.
Step-by-step explanation:
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Given:
p = 20% = 0.2, sample proportion
n = 5000, sample size.
Confidence level = 95%
The confidence interval is
(p - 1.96k, p + 1.96k)
where

Therefore the 95% confidence interval is
(0.1943, 0.2057) = (19.4%, 20.6%)
Answer: The 95% confidence interval is (19.4%, 20.6%)