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A political strategist wants to test the claim that the percentage of residents who favor construction is more than 30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: $p \leq 0.3$

Alternative hypothesis $p >0.3$

Step-by-step explanation:

We have the following info given from the problem:

$n= 800$ the random sample of voters selected from the town

$\hat p = 0.34$ represent the proportion of residents favored construction

$p_o = 0.30$ represent the value desired to test.

A political strategist wants to test the claim that the percentage of residents who favor construction is more than 30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: $p \leq 0.3$

Alternative hypothesis $p >0.3$

And in order to test this hypothesis we can use a one sample z test for a population proportion and the statistic would be given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

And with the data given we have:

$z=\frac{0.34 -0.3}{\sqrt{\frac{0.3(1-0.3)}{800}}}=2.469$

7 0

3 years ago

Write this whole number as a product of prime numbers.<br><br> 50

Lostsunrise [7]

Answer:

Prime factorization: 50 = 2 x 5 x 5

8 0

3 years ago

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Can you break down how this equation was solved?

dolphi86 [110]

Yes! Let me help you!

Here is the original equation, lets solve this step-by-step

(x + 2)/4 = 5

Now, lets find out how.

We must apply the inverse operation.

4/2 is the reciprocal, so lets multiply that to both sides.

4/2 = 2
5*4 = 20

4x + 8 = 20
-8 -8 Subtract 8 from both sides. (Inverse operation)

4x = 12
4x/4 = 12/4 Divide 4 by both sides (Inverse)

x = 12/4
x = 3 Simplified

Answer: x = 3

3 0

3 years ago

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