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Svet_ta [14]
3 years ago
13

The temperature at 5:00AM this morning was 25°F. By 8:00AM, the temperature had increased by 40%. What was the temperature at 8:

00AM?
Mathematics
1 answer:
max2010maxim [7]3 years ago
6 0
40% of 25 is 10 and 10+25 is 35 so the answer to your question is 35<span>°F</span>
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Small sample: During an economic downturn, companies were sampled and asked whether they were planning to increase their workfor
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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

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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

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2 years ago
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Read 2 more answers
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