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3 years ago

Please help ASAP!

Mathematics

1 answer:

Fudgin [204]3 years ago

5 0

Amplitude:

we can see that

maximum value is 3

minimum value is -1

so,

$A=\frac{max-min}{2}$

$A=\frac{3+1}{2}$

$A=2$

Period:

It is time completed after which value repeats itself

so, we get

$T=\pi -0$

$T=\pi$

so,

option-D............Answer

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

Step-by-step explanation:

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0.6 is tested at the null hypothesis:

This means that:

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

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

Value of the test-statistic:

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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.

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