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ladessa [460]
2 years ago
14

For each point, identify the axis or quadrant where the point is located. Drag and drop the choices into the boxes to complete t

he table. x-axis y-axis Quadrant I Quadrant II Quadrant III Quadrant IV (0.6),(5 -2),(-1 10),(5.0)(8.7.2.3)(-1/4 -6 1/2. PLEASE HELP I'LL GIVE YOU 31 POINT'S
Mathematics
1 answer:
Radda [10]2 years ago
6 0

Answer:

we need help with the same thing

Step-by-step explanation:

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A poll found that 53% of a sample of 1170 teens in a certain large country go online several times a day. (Treat this sample as
posledela

Answer:(a) margin error = 2.4%

(b) The margin error gives the measure in percentage of how the population parameter determined differ from the real population statistics or value.

(c) in 90% of the samples of teens in the country, the percent who go online several times a day will be within 50.6% and 55.4%. of the estimated 100%

Step-by-step explanation:

Using the proportion formulae

Margin error = z √p(1-p)/n

n= 1170, p = 53% = 0.53, 1-p = 0.47

and the z value at 90% C.I = 1.645

M error= 1.645 √0.53×0.47/1170

Margin error = 0.024 = 0.024 ×100

Margin error = 2.4%

53 - 2.4 = 50.6% and 53 + 2.4 = 55.4%

In other words 90% of the time: the number of teens who go online several time a day will be between 50.6 and 55.4%.

8 0
3 years ago
What is <br>4x + 2 = 7x + 9
Free_Kalibri [48]

4X=7X+7

-3X=7

X= -3/7

                   

8 0
2 years ago
Read 2 more answers
PLEASE HELP QUICK 3t-2=-11
valentina_108 [34]
-3
step by step
add 2 to -11 and divide-9 by 3
5 0
3 years ago
Read 2 more answers
What is the output of 3(1)?<br> Input(x) 3x Output<br> 1 3(1) ???
tester [92]

Answer:

1.0

2.3

3.6

Step-by-step explanation:

3*0=0

3*1=3

3*2=6

5 0
3 years ago
Watching tv: in 2012, the general social survey asked a sample of 1310 people how much time they spend\t watching tv each day. T
gayaneshka [121]

Answer:

a) Null hypothesis:\mu \geq 3  

Alternative hypothesis:\mu < 3  

This hypothesis test is a left tailed test.

b) t=\frac{2.8-3}{\frac{2.6}{\sqrt{1310}}}=-2.784  

The p value for this case can be calculated with this probability:  

p_v =P(z  

We can conduct the test with the Ti84 using the following steps:

STAT>TESTS>T-test>Stats

We input the value \mu_o =3, \bar X= 2.8, s_x = 2.6, n=1310 and for the alternative we select < \mu_o. Then press Calculate.

And we got the same results.  

Step-by-step explanation:

Information given

\bar X=2.8 represent the sample mean

s=2.6 represent the population standard deviation  

n=1310 sample size  

\mu_o =3 represent the value to test

\alpha=0.5 represent the significance level for the hypothesis test.  

t would represent the statistic

p_v represent the p value for the test

Part a) System of hypothesis

We want to test if the true mean is less than 3, the system of hypothesis would be:  

Null hypothesis:\mu \geq 3  

Alternative hypothesis:\mu < 3  

This hypothesis test is a left tailed test.

Part b

The statistic is given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)  

Replacing the info given we got:

t=\frac{2.8-3}{\frac{2.6}{\sqrt{1310}}}=-2.784  

The p value for this case can be calculated with this probability:  

p_v =P(z  

We can conduct the test with the Ti84 using the following steps:

STAT>TESTS>T-test>Stats

We input the value \mu_o =3, \bar X= 2.8, s_x = 2.6, n=1310 and for the alternative we select < \mu_o. Then press Calculate.

And we got the same results.  

6 0
3 years ago
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