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Ronch [10]
2 years ago
5

Pls help ASAP I will give you as many points as you need

Mathematics
2 answers:
meriva2 years ago
5 0

Answer:

its A

Step-by-step explanation:

can I have brailiest pls I need 1 more

Stels [109]2 years ago
4 0

Answer:

a) 3

b) 46

c) 18

Step-by-step explanation:

a) There are three values in the 20s representing 3 cars

b) 6 is the highest in the 40s so it would be 46

c) the lowest overall would be 18

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A driving school wants to find out which of its two instructors is more effective at preparing students to pass the state’s driv
jonny [76]

Answer:

Yes, there is evidence to support that claim that instructor 1 is more effective than instructor 2

Step-by-step explanation:

We can conduct a hypothesis test for the difference of 2 proportions.  If there is no difference in instructor quality, then the difference in proportions will be zero.  That makes the null hypothesis

H0:  p1 - p2 = 0

The question is asking whether instructor 1 is more effective, so if he is, his proportion will be larger than instructor 2, so the difference would result in a positive number.  This makes the alternate hypothesis

Ha:  p1 - p2 > 0

This is a right tailed test (the > or < sign always point to the critical region like an arrowhead)

We will use a significance level of 95% to conduct our test.  This makes the critical values for our test statistic: z > 1.645.  

If our test statistic falls in this region, we will reject the null hypothesis.

<u>See the attached photo for the hypothesis test and conclusion</u>

7 0
3 years ago
Can you guys help me find the slope for the given graph and y-intercept <br> (pictures included)
serious [3.7K]

Answer:

I believe the answer is

y =  \frac{2}{3} x + 1

slope = 2/3x

y-intercept = 1

Step-by-step explanation:

Hope this helps!

4 0
3 years ago
5c-15, what is the coefficient of the variable
erik [133]
5 is the coefficient 
5 0
3 years ago
Read 2 more answers
Find the slope of 4x-y=9
lakkis [162]

4xAnswer: y=9-4x

Step-by-step explanation: Subtract 4X from both sides

7 0
3 years ago
a train leaves little rock, arkansas and travels north at 70 kilometers per hour. another train leaves at the same time and trav
jekas [21]
45 hours.
80 - 70= 10, and 450/10 is 45.
to justify, you can do 70x45= 3,150, and 80x45= (3,600 - 3,150= 450)
8 0
3 years ago
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