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Alex
3 years ago
13

A survey concluded that 60% of cars going through the Lomonosov street encounters traffic jam. After installing a new traffic li

ghts, a random sample of 2500 cars was found to contain 1462 cars encountered traffic jam. Have the new installed traffic lights had any effect? State your conclusion with 0.05 level of significance
Mathematics
2 answers:
Mkey [24]3 years ago
6 0

Yes, the new traffic lights have had an effect, as only 58.48% of surveyed cars had encountered a traffic jam, compared to 60% before the installation of the traffic lights.

erastovalidia [21]3 years ago
3 0

Answer:

Close encounters. AI can help city officials manage traffic by counting how many moving vehicles travel down a road and identifying close encounters between vehicles and pedestrians. Courtesy TACC.

Step-by-step explanation:

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Given

A = 2x + 1

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C = x + 15

Required

Arrange the angles from smallest to largest

First, we need to determine the value of x.

Since, it is a triangle:

A + B + C = 180

Substitute values for A, B and C

2x + 1+ x + x + 15 = 180

Collect Like Terms

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Solve for x

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3 years ago
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