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Tomtit [17]
3 years ago
13

PLS HELP IM EXHAUSTED WILL GIVE DA CROWN

Mathematics
2 answers:
Nataly [62]3 years ago
5 0

Answer:


Step-by-step explanation:


natali 33 [55]3 years ago
5 0
The answer to your question is a -1 1/8
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A driver's education course compared 1,500 students who had not taken the course with 1,850 students who had. Of those students
aivan3 [116]

Answer:

P-value is less than 0.999995 .

Step-by-step explanation:

We are given that a driver's education course compared 1,500 students who had not taken the course with 1,850 students who had.

Null Hypothesis, H_0 : p_1 = p_2 {means students who took the driver's education course and those who didn't took have same chances to pass the written driver's exam the first time}

Alternate Hypothesis, H_1 : p_1 > p_2 {means students who took the driver's education course were more likely to pass the written driver's exam the first time}

The test statistics used here will be two sample Binomial statistics i.e.;

                             \frac{(\hat p_1 - \hat p_2)-(p_1 - p_2)}{\sqrt{\frac{\hat p_1(1- \hat p_1)}{n_1} + \frac{\hat p_2(1- \hat p_2)}{n_2} } } ~ N(0,1)

Here, \hat p_1 = No. of students passed the exam ÷ No.of Students that had taken the course

 \hat p_1  = \frac{1150}{1850}            Similarly,  \hat p_2 = \frac{1440}{1500}          n_1 = 1,850       n_2 = 1,500

  Test Statistics = \frac{(\frac{1150}{1850} -\frac{1440}{1500})-0}{\sqrt{\frac{\frac{1150}{1850}(1- \frac{1150}{1850})}{1850} + \frac{\frac{1440}{1500}(1- \frac{1440}{1500})}{1500} } } = -27.38

P-value is given by, P(Z > -27.38) = 1 - P(Z > 27.38)

Now, in z table the highest critical value given is 4.4172 which corresponds to the probability value of 0.0005%. Since our test statistics is way higher than this so we can only say that the p-value for an appropriate hypothesis test is less than 0.999995 .

6 0
3 years ago
The function f is a defined by f (x) =x^2+6<br> Find f (3x)
Elina [12.6K]

Step-by-step explanation:

here

f(x)=x^2+6

Now

Replacing the value of x

f(3x)=3x^2 +6

4 0
2 years ago
Two less than two thirds times a number is ten
beks73 [17]
Let the number be x
2/3*x - 2 = 10
or, 2/3 * x =12
or x= 12*3/2
or, x = 18
6 0
3 years ago
Y=-x+4 <br>y=x-4<br>the picture gives instructions<br>​
Soloha48 [4]

Answer:

This equation has <u>No Solutions. </u>

Step-by-step explanation:

It is parrel because it has the same x. When equations have the same x it is always parrel or it always has no solutions.

<em>I hope it helps! Have a great day!</em>

<em>Lilac~ </em>

8 0
2 years ago
Read 2 more answers
(8x-4)+(17x-23)+(3x+17)=180
12345 [234]

Answer:

b

Step-by-step explanation:

b

7 0
3 years ago
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