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Lapatulllka [165]
3 years ago
5

A large western state consists of 3390 million acres of land. Approximately 92% of this land is federally owned. Find the number

of acres that are not federally owned.
Million acres:

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Answer: 31.2

Step-by-step explanation: 100 - 92 = 8%

3390 acres ---- 100%

x acres ------ 8%

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For statictics of Out of 780 smokers, 376 have been divorced, Non-smokers: Out of 2855 non-smokers, 902 have been divorced, the 95% confidence interval for smokers and non-smokers is mathematically given as

  • 95% confidence interval = (0.5352, 0.4462)
  • 95% confidence interval = (0.3424, 0.2894)
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<h3>What is the 95% confidence interval for smokers and non-smokers?</h3>

Generally, the equation for the Confidence interval is mathematically given as

p ± Z/2[p(1-p)]/n

Where

Z1/2=1-(0.05/2)

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Read z table we have

Z score= 1.96

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95% confidence interval = (0.5352, 0.4462)

b)

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Z score= 1.96

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95% confidence interval = (0.3424, 0.2894)

c)

In conclusion, The 95% confidence interval helps us read that 53% increased risk of divorce for smokers.

Read more about Confidence interval

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