A submarine was situated 759 feet below sea level. If it ascends 125 feet, what is its new position?

Mathematics

1 answer:

9966 [12]2 years ago

3 0

Answer:

634

Step-by-step explanation:

it started 759 under went up 125 feet

use the equation 759-125=634

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A study was recently conducted to estimate the mean cholesterol for adult males over the age of 55 years. From a random sample o

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Step-by-step explanation:

Confidence interval for population mean when population standard deviation is unknown:

$\overline{x}\pm t_{\alpha/2}\dfrac{s}{\sqrt{n}}$ , where $\overline{x}$ = sample mean, n= sample size, s= sample standard deviation, $t_{\alpha/2}$ = two-tailed t value.

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degree of freedom : df = n-1=9

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So, the 95 percent confidence interval estimate for the mean :

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