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Leviafan [203]
3 years ago
15

A busy traffic intersection in a city was experiencing an average of 20 accidents per week. The council decided to try to reduce

the number of accidents by placing a stop sign at the intersection. In this situation, what is:
a. the null hypothesis
b. the alternative hypothesis
Mathematics
1 answer:
inessss [21]3 years ago
7 0

Answer:

Null hypothesis; H0: μ1 = μ2

Alternative hypothesis; Ha: μ1 > μ2

Step-by-step explanation:

We are told that the telraffic was experiencing an average of 20 accidents per week.

Thus, μ = 20

We are told that the council decided to try to reduce the number of accidents.

Thus defining the hypothesis, we have;

Null hypothesis; H0: μ1 = μ2

Alternative hypothesis; Ha: μ1 > μ2

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The percent of the increase is

I=\frac{N-O}{O}\times100

I is the increasing value

N is the new value

O is the original value

The price of the cooler is $28.50, then

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The selling price of the cooler is $40.76, then

N = 40.76

We will substitute them in the rule above to find I

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Let us calculate it

I = 43.0175 %

Round it to the nearest percent

I = 43%

The answer is D

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Rearrange 3x - 6y = -2 to the form y=mx + c
wel

3x - 6y = -2

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Step-by-step explanation:

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2 years ago
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1. find the balance after one year if you deposit all the money into an account that pays $2.50 in simple interest each month (t
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1. Balance after 1 year with simple interest= 600 + (2.5 x 12) = 600 + 30 = $630

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