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Arlecino [84]
3 years ago
12

Need help with this problem asap

Mathematics
1 answer:
GarryVolchara [31]3 years ago
8 0

Answer:

plug in the day to the equation:

November 1st is day 305, so November 24th would be day 328

y = 116.65 sin(0.02(328) +1.89) + 731.71

= 116.65 sin(8.45) + 731.71

= 828.247 minutes of daylight

≈ 13.8 hours or 13:48 (because .8 of an hour is ≈ 48 minutes)

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Answer:

The sample size required is 2500.

Step-by-step explanation:

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In function of the margin of error M, the z-score is given by:

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In this question, we have that:

\sigma = 51.02, M = 2, Z = 1.96

So

Z = \frac{M\sqrt{n}}{\sigma}

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2\sqrt{n} = 51.02*1.96

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