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maria [59]
2 years ago
12

PLEASE ANSWER URGENT WILL GIVE BRAINLIEST AND 20 POINTS.

Mathematics
1 answer:
Butoxors [25]2 years ago
6 0

C~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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14 = 2y/5 what is the solution?
Gnom [1K]

Answer:

y=35

Step-by-step explanation:

y in (-oo:+oo)

14 = (2*y)/5 // - (2*y)/5

14-((2*y)/5) = 0

(-2/5)*y+14 = 0

14-2/5*y = 0 // - 14

-2/5*y = -14 // : -2/5

y = -14/(-2/5)

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5 0
3 years ago
The department of public safety has an old memo stating that the number of accidents per week at a hazardous intersection varies
ELEN [110]

Answer:

P-value = 0.1515

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 2.2

Sample mean, \bar{x} = 2

Sample size, n = 52

Alpha, α = 0.05

Population standard deviation, σ = 1.4

First, we design the null and the alternate hypothesis

H_{0}: \mu =2.2\\H_A: \mu < 2.2

We use one-tailed(left) z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{2 - 2.2}{\frac{1.4}{\sqrt{52}} } = -1.03

Now, we calculate the p-value from the normal standard table.

P-value = 0.1515

6 0
3 years ago
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