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serg [7]
2 years ago
14

I=8x4-3x3+5x2+1000x , determine la Utilidad Marginal evaluándola para 20 unidades.

Mathematics
1 answer:
DerKrebs [107]2 years ago
5 0

Answer:

5

Step-by-step explanation:

yeah idek what you said I just need the points please write in English next time but I see something a about marginal

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Solution :

Given :

Sample mean, $\overline X = 34.2$

Sample size, n = 129

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a. Since the population standard deviation is unknown, therefore, we use the t-distribution.

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   α = 0.05, α/2 = 0.025

  From the t tables, T.INV.2T(α, degree of freedom), we find the t value as

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 (32.52, 35.8)

 95% confidence interval is  (32.52, 35.8)

So with $95 \%$ confidence of the population of the mean number of the pounds per person per week is between 32.52 pounds and 35.8 pounds.

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