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2 years ago

8

Find the sum or difference

" id="TexFormula1" title=" \frac{5}{10} - \frac{3}{10} " alt=" \frac{5}{10} - \frac{3}{10} " align="absmiddle" class="latex-formula">

1 answer:

Paraphin [41]2 years ago

5 0

Answer:

0.2

Step-by-step explanation:

Or 2/10. is that right?

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NikAS [45]

Answer:

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And we are 95% confident that the true mean of chloride concentration is between 0.375 and 0.377 cc/ cubic meter

Step-by-step explanation:

Data provided

$\bar X=0.376$ represent the sample mean for the chloride concentration

$\mu$ population mean (variable of interest)

s=0.0012 represent the sample standard deviation

n=15 represent the sample size

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And the confidence interval is:

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And we are 95% confident that the true mean of chloride concentration is between 0.375 and 0.377 cc/ cubic meter

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