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nevsk [136]
2 years ago
12

Anybody a expert or really good at social studies cuz I really need that help answer ASAP

Mathematics
1 answer:
xeze [42]2 years ago
3 0

bbc because its super big like super big

Step-by-step explanation:

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The data given to the right includes data from ​candies, and of them are red. The company that makes the candy claims that ​% of
Dafna1 [17]

Using the z-distribution, the 95% confidence interval for the percentage of red candies is of (7.84%, 33.18%). Since 33% is part of the interval, there is not enough evidence to conclude that the claim is wrong.

<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.

Researching this problem on the internet, 8 out of 39 candies are red, hence the sample size and the estimate are given by:

n = 39, \pi = \frac{8}{39} = 0.2051

Hence the bounds of the interval are:

  • \pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2051 - 1.96\sqrt{\frac{0.2051(0.7949)}{39}} = 0.0784
  • \pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2051 + 1.96\sqrt{\frac{0.2051(0.7949)}{39}} = 0.3318

As a percentage, the 95% confidence interval for the percentage of red candies is of (7.84%, 33.18%). Since 33% is part of the interval, there is not enough evidence to conclude that the claim is wrong.

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

#SPJ1

7 0
2 years ago
What is the answer to this one need asap
uranmaximum [27]
Hello,

The correct answer is 18.
Hope this helps!!
Brainliest?
6 0
3 years ago
Can the side of a triangle have lengths 2,8,9?
photoshop1234 [79]

Answer:

Yes

Step-by-step explanation:

The smaller two sides have to be greater than the biggest side.

2+8>9, so it can make a triangle.

3 0
2 years ago
The polygons in each pair are similar. find the scale factor of the smaller figure to the larger figure.
zaharov [31]
Use the lengths of corresponding sides
so answer is 16:40  which simplifies to  2:5.
4 0
3 years ago
Which ordered pair is a solution of the equation?
aleksley [76]

Answer:

D

Step-by-step explanation:

try all of them

7 0
3 years ago
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