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amm1812
2 years ago
14

Which of the following choices is an example of gathering evidence?

Mathematics
1 answer:
Anika [276]2 years ago
8 0

Answer:

OA Taking Measurements

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Small sample: During an economic downturn, companies were sampled and asked whether they were planning to increase their workfor
leva [86]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The confidence level interval is  0.016 \le C \le 0.404

Step-by-step explanation:

The sample size is  n =  20

The number planning to increase workforce is  x =  3

 The confidence level is  c  = 98%

The value of proportion for a plus 4 method is

      p = \frac{x+2}{n+4}

substituting values

      p = \frac{3+2}{20+4}

       p =0.21

The z-critical value at confidence level of 98% is

     z_{c}=z_{0.98} =  2.33

This values is obtained from the standard normal table

The confidence level interval can be mathematically represented as

      C =p \ \pm z_{c} * \sqrt{\frac{p(1-p)}{n+4} }

substituting values

      C = 0.21 \pm 2.33 * \sqrt{\frac{0.21(1- 0.21)}{20 +4} }

       C = 0.21 \pm 0.194

=>   0.016 \le C \le 0.404

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3 years ago
Write and simplify an expression for the area of the triangle (please answer!)
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That’s what u got I don’t know if there’s another answer

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3 years ago
Read 2 more answers
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