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3 years ago

Okay, third times the charm.

Mathematics

1 answer:

Natali5045456 [20]3 years ago

7 0

Answer:

100% = $405,500

100 + 24 = 124%

124/100=1.24

$405,500 x 1.24^18 = $19479651.89

$19479651.89 - $405,500 = $19074151.89 profit.

To nearest whole number is $19074152.

Hope this helps!

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Answer:

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No options given. So, I will solve generally.

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3 years ago

The following information was obtained from independent random samples taken of two populations. Assume normally distributed pop

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Answer:

1. The 95% confidence interval for the difference between means is (-5.34, 11.34).

2. The standard error of (x-bar1)-(x-bar2) is 4.

$s_{M_d}=\sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma_2^2}{n_2}}=\sqrt{\dfrac{9.2195^2}{10}+\dfrac{9.4868^2}{12}}\\\\\\s_{M_d}=\sqrt{8.5+7.5}=\sqrt{16}=4$

Step-by-step explanation:

We have to calculate a 95% confidence interval for the difference between means.

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The sample 2, of size n2=12 has a mean of 42 and a standard deviation of √90=9.4868.

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The critical t-value for a 95% confidence interval is t=2.086.

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$MOE=t\cdot s_{M_d}=2.086 \cdot 4=8.34$

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The 95% confidence interval for the difference between means is (-5.34, 11.34).

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