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USPshnik [31]
4 years ago
12

A driver's education course compared 1,500 students who had not taken the course with 1,850 students who had. Of those students

who did not take the driver's education course, 1,150 passed the written driver's exam the first time compared with 1,440 of the students who did take the course. A significance test was conducted to determine whether there is evidence that the students who took the driver's education course were more likely to pass the written driver's exam the first time. What is the p-value for an appropriate hypothesis test?
1
0.7895
0.4209
0.2105
0
(I chose .4209 after using a 2-PropZTest. I need some help checking. An explanation if I'm wrong would be great)
Mathematics
1 answer:
aev [14]4 years ago
8 0
I believe the answer is 0.2105 and the error you made of saying 0.4209 was because you did a 2-PropZTest when this question seems to be asking for one proportion (not two). When the p value is greater than or less, use one-proportion, if it is "!=" not equal than it is two-proportion. Please let me know if this was correct.
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Lera25 [3.4K]

Answer:

There are about 10 blossoms per plant.

Step-by-step explanation:

If 12 plants = 123 blossoms

Then, 1 plant = x blossoms

12x = 123

divide both sides by 12

x = 10.25

To the nearest whole number, x = 10

7 0
3 years ago
4. The Atlantic and Pacific Ocean are the
Arisa [49]

Answer:

2,489,589,100 more water

Step-by-step explanation:

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8 0
3 years ago
(78 n + 42)^2, when n = 91
Sergio039 [100]
So evaluate/subsitue
the equation becomes
(78 times 91+42)^2

pemdas
do what's inside the parenthasees first

start over
parenthasees
exponents
multiplication and division yes 78 times 91
addition  and subtraction so


78 times 91 is first
78 times 91=7098
addition
(7098+42)^2
(7140)^2

restart

parentasees simplified
exponents
7140^2=50,979,600
7 0
3 years ago
PLEASE HELP...........
shtirl [24]

Answer:

increases

decreases but stays above 0.

Step-by-step explanation:

Increases without bound. You are going left which means that x is getting smaller and smaller (large negatives are very small).

As x increases without bounds, f(x) approaches 0 but does not go minus.

5 0
3 years ago
How does the graph of f (x) = |x| compare with the graph of g (x) = -1/2 |x|?
777dan777 [17]

Answer:

The graph of f(x) = |x| is a v-shape and doesn't cross over the x-axis.

The graph of g(x) = -1/2|x| is still a v-shape, but it's upside-down and a bit wider. This is because of the coefficient in front of the |x|.  The negative sign flips the graph of |x| and the 1/2 makes the slope smaller, therefore the graph is less steep.

I've attached a picture of the two lines below!

3 0
3 years ago
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