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scoundrel [369]
3 years ago
13

Which is greater? -5.7 or -5 2/5

Mathematics
2 answers:
Neko [114]3 years ago
8 0
- 5 2/5


when u put -5.7 in fraction form it is - 5 7/10 and to make it easier to compare u can change -5 2/5 to -5 4/10. Because it is in negatives, (think about the number line) -5 2/5 is greater. hope this helps
AleksAgata [21]3 years ago
3 0

Answer:

-5 2/5

Step-by-step explanation:

we know that 2/5 is 0.4 so

it is -5.4

-5.4 is greater than -5.7

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Using the z-distribution, it is found that the 95% confidence interval is (0.46, 0.526), and it does not provide strong evidence against that belief.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

We have that a random sample of 864 births in a state included 426 boys, hence the parameters are given by:

n = 864, \pi = \frac{426}{864} = 0.493

Then, the bounds of the interval are given by:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.493 - 1.96\sqrt{\frac{0.493(0.507)}{864}} = 0.46

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.493 + 1.96\sqrt{\frac{0.493(0.507)}{864}} = 0.526

The 95% confidence interval estimate of the proportion of boys in all births is (0.46, 0.526). Since the interval contains 0.506, it does not provide strong evidence against that belief.

More can be learned about the z-distribution at brainly.com/question/25890103

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2 years ago
Jim will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $ 59 and costs an addi
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Step-by-step explanation:

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Step-by-step explanation:

62= -3k + 7k + 42 + 4

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Step-by-step explanation:

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