Please please answer and show work

Mathematics

1 answer:

butalik [34]2 years ago

5 0

Answer:

$y=-\frac{3}{2}x + 6$

Step-by-step explanation:

For perpendicular lines, we use the same y-intercept. Though, to find the slope of perpendicular lines, we use opposite reciprocals. The opposite reciprocal of $\frac{2}{3}$ is $-\frac{3}{2}$ .

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A 95% confidence interval for a population mean is determined to be 100 to 120. If the confidence coefficient is reduced to 0.90

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$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

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And we want to know what happens with the interval if we reduce the confidence level to 90% and for this case we will get a narrower interval since the critical value $t_{\alpha/2}$ would be lower. So then the best option would be: