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3 years ago

9

0 / 3 Marks Homework Progress 16 / 33 Marks

2 answers:

ehidna [41]3 years ago

6 0

Answer:

what do you meen by this

Step-by-step explanation:

just olya [345]3 years ago

5 0

What does this mean... I don’t understand

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Two right triangles are graphed on a coordinate plane. One triangle has a vertical side of 4 and a horizontal side of 10. The ot

miskamm [114]

No, <span>hypotenuses of these two triangles won't lie along the same line </span><span>because one is larger than the other
</span><span>
In short, Your Answer would be Option B

Hope this helps!</span>

8 0

3 years ago

Assume, for the sake of this question, that the data were collected through a well-designed, well-implemented random sampling me

amid [387]

Answer:

Since the pvalue of the test is 0.2743 > 0.1, the threshold probably was met.

Step-by-step explanation:

The widget manufacturing company had established a threshold of 60% preferring the proposed new widget to move forward with producing the new widgets.

This means that at the null hypothesis we test if the proportion is at least 60%, that is:

$H_{0}: p \geq 0.6$

And the alternate hypothesis is:

$H_{a}: p < 0.6$

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

0.6 is tested at the null hypothesis:

This means that:

$\mu = 0.6$

$\sigma = \sqrt{0.6*0.4}$

Three hundred thirty-eight of 575 respondents reported preferring the proposed new widget.

This means that $n = 575, X = \frac{338}{575} = 0.5878$

Value of the test-statistic:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{0.5878 - 0.6}{\frac{\sqrt{0.6*0.4}}{\sqrt{575}}}$

$z = -0.6$

Pvalue of the test and decision:

We want to find the probability of a proportion of 0.5878 or lower, which is the pvalue of z = -0.6.

Looking at the z-table, z = -0.6 has a pvalue of 0.2743.

Since 0.2743 > 0.1, the threshold probably was met.

3 0

3 years ago

3.9x9.87<br><img src="https://tex.z-dn.net/?f=3.9%20%5Ctimes%209.87%20%5C%5C%20%20%5C%5C%20" id="TexFormula1" title="3.9 \times

drek231 [11]

3.393x i think but you can use math basic for see

6 0

3 years ago

I’ll give brainest just help

DENIUS [597]

Answer:

B

Step-by-step explanation:

8 0

3 years ago

Drag each equation to the model and situation it matches.<br> (Picture) *I will give a brainliest

arlik [135]

Answer:

First model gets the equation: y = 2 . 2^z

Second model gets the equation: y = 4^z

Third model gets the equation: y: = 4 . 2^z

7 0

3 years ago