Find the Sample size for 99% confidence level with a margin of error of 4% and p unknown.
1 answer:
Answer:
za/2: Divide the confidence level by two, and look that area up in the z-table: .95 / 2 = 0.475. ...
E (margin of error): Divide the given width by 2. 6% / 2. ...
: use the given percentage. 41% = 0.41. ...
: subtract. from 1.
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Answer:
1 DVD costs 15 cents.
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Step-by-step explanation:
If 20 DVDs ------ $3
then, 1 DVD----------- x
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Step-by-step explanation:
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