3 years ago

What is the slope of (1,5),(2,8)

Mathematics

1 answer:

Setler79 [48]3 years ago

6 0

Answer:

m=3

Step-by-step explanation:

m= 8-(5)/2-(1)

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A university with a high water bill is interested in estimating the mean amount of time that students spend in the shower each d

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Answer: $(4.0845,\ 6.5755)$

Step-by-step explanation:

As per given , we have

n = 11

$\overline{x}=5.33\\\\ s=1.33$

Since population standard deviation is missing, so we use t-test.

Critical t-value for 99% confidence :

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Confidence interval :

$\overline{x}\pm t_{\alpha/2}\dfrac{s}{\sqrt{n}}\\\\= 5.33\pm (3.1060)\dfrac{1.33}{\sqrt{11}}\\\\\approx5.33\pm1.2455\\\\=(5.33-1.2455,\ 5.33+1.2455)\\\\=(4.0845,\ 6.5755)$

Hence, 99% confidence interval for the mean amount of time that students spend in the shower each day.= $(4.0845,\ 6.5755)$

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Step-by-step explanation:

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