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kap26 [50]
3 years ago
8

Place decimal points in 34, 4, and 417 so that the sum of the three numbers is 7.97.

Mathematics
1 answer:
KIM [24]3 years ago
8 0
3.4+0.4+4.17=7.97 you just have to try different combinations of different numbers with the decimals.
                                                             





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Smokers: Out of 780 smokers, 376 have been divorced.
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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)

Z1/2=0.975

Read z table we have

Z score= 1.96

Hence

0.4907 ± 1.96 (0.4907)(1-0.4907)/485

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Therefore

95% confidence interval = (0.5352, 0.4462)

b)

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Z1/2 = 0.975

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0.3159±0.0265

Thereofore

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

brainly.com/question/17097944

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