2 years ago

2. A line has a slope of which of the

Mathematics

1 answer:

Vinil7 [7]2 years ago

3 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline{x}\ \pm\ t_{n-1,\alpha/2}\dfrac{s}{\sqrt{n}}$

Given : $\overline{x}=19.3$

$s= 3.1$

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Significance level: $1-0.95=0.05$

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$19.3\ \pm\ (2.074)\dfrac{3.1}{\sqrt{23}}\\\\\approx19.3\pm1.34\\\\=(19.3-1.34,19.3+1.34)\\\\=(17.96,20.64)$

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