PSLS S S S S S S S s s s. Ss s s s s

Mathematics

2 answers:

klasskru [66]2 years ago

5 0

Answer:

Step-by-step explanation:

5x2x8=80

liq [111]2 years ago

5 0

Answer:

volume= 8*2*5

=80cube

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We are interested in conducting a study to determine the percentage of voters of a state would vote for the incumbent governor.

Vladimir [108]

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.05}{1.96})^2}=384.16$

And rounded up we have that n=385

Step-by-step explanation:

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by $\alpha=1-0.95=0.05$ and $\alpha/2 =0.025$ . And the critical value would be given by: