Math Myra borrowed $3,500 from her uncle at
5% annual simple interest. If Myra pays the
loan back in 3 years, what will be the total
amount that she paid?

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Ответ:

Gaby702

15.03.2023

Mathematics

Fourth option is correct.

Step-by-step explanation:

Since we have given that

Mean of sample = 65.3

Standard deviation = 5.2

We need to find the 90% confidence interval for the mean.

So, z = 1.64

And the interval would be

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=65.3\pm 1.64\times \dfrac{5.2}{\sqrt{36}}\\\\=65.3\pm 1.42\\\\=(65.3-1.42,65.3+1.42)\\\\=(63.88,66.72)\\\\=(63.9,66.7)$

Hence, Fourth option is correct.

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Math Myra borrowed $3,500 from her uncle at 5% annual simple interest. If Myra pays the loan back in 3 years, what will be the total amount that she paid?