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Assoli18 [71]
3 years ago
14

What is the equation of a line that passes through the point -(6,6) and has a slope of 1/3​

Mathematics
1 answer:
hjlf3 years ago
6 0

Answer:

Step-by-step explanation:

y-y = m(x - x)

I couldn't tell if the point was negative, so I'll do both

Positive                                      Negative

(6,6)  m= 1/3                             -(6,6)  m= 1/3

y-6 = 1/3(x - 6)                           y+6 = 1/3(x +6)

y-6 = 1/3x - 2                              y+6 = 1/3x + 2

y = 1/3x +4                                  y = 1/3x - 4

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jeka57 [31]

Answer:

There is strong evidence that less than 87% of the orders are delivered in less than 10 minutes.

Decision rule: Reject the null hypothesis if (P-value < level of significance)

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Step-by-step explanation:

In this question we have to test an hypothesis.

The null and alternative hypothesis are:

H_0: \pi\geq0.87\\\\H_a:\pi

The significance level is assumed to be 0.01.

The sample of size n=80 gives a proportion of p=61/80=0.7625.

The standard deviation is:

\sigma=\sqrt{\frac{\pi(1-\pi)}{N} }=\sqrt{\frac{0.87*0.13}{80} }=0.0376

The statistic z is then

z=\frac{p-\pi+0.5/N}{\sigma}=\frac{0.7625-0.87+0.5/80}{0.0376} } =\frac{-10125}{0.0376} =-2.70

The P-value is

P(z

The P-value (0.003) is smaller than the significance level (0.010), so the effect is significant. The null hypothesis is rejected.

There is strong evidence that less than 87% of the orders are delivered in less than 10 minutes.

Decision rule: Reject the null hypothesis if (P-value < level of significance)

Test statistic z=-2.70

Decision: Reject the null hypothesis (0.003<0.010)

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Step-by-step explanation:

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Given:

The objective is to find the slope of the straight line.

Explanation:

The general equation to find the slope is,

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