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belka [17]
3 years ago
13

Please give me a real answer or I will report you I dont want to friend you just put the answers in the comments

Mathematics
1 answer:
kotykmax [81]3 years ago
4 0

Answer:

j = 17.32 sq rt 3  or   30

Step-by-step explanation:

sin 60 = j/20sq rt 3

0.8660 = j/20sq rt 3

j = 17.32 sq rt 3

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Step-by-step explanation:

The formula to find the sample size is given by :-

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Here we can see that the sample size is inversely proportion withe square of margin of error.

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Then, we have

(1000)(0.05)^2=n_2(0.025)^2\\\\\Rightarrow\ 2.5=0.000625n_2\\\\\Rightarrow\ n_2=\dfrac{2.5}{0.000625}=4000

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3 years ago
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3 years ago
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Please help me solve and explain
Anna11 [10]
I would say go with with B

5 0
3 years ago
Read 2 more answers
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