Question

Only 10% of registered voters voted in the last election. Will voter participation increase for the upcoming election? Of the 316 randomly selected registered voters surveyed, 47 of them will vote in the upcoming election. What can be concluded at the αα = 0.01 level of significance?

- For this study, we should use Select an answer t-test for a population mean z-test for a population proportion
- The null and alternative hypotheses would be:

H0:H0: ? p μ ? < ≠ > = (please enter a decimal)

H1:H1: ? p μ ? > = < ≠ (Please enter a decimal)

- The test statistic ? t z = (please show your answer to 3 decimal places.)
- The p-value = (Please show your answer to 4 decimal places.)
- The p-value is ? > ≤ αα
- Based on this, we should Select an answer reject fail to reject accept the null hypothesis.
- Thus, the final conclusion is that ...
- The data suggest the populaton proportion is
**significantly**higher than 10% at αα = 0.01, so there is statistically significant evidence to conclude that the the percentage of all registered voters who will vote in the upcoming election will be higher than 10%. - The data suggest the population proportion is not
**significantly**higher than 10% at αα = 0.01, so there is statistically insignificant evidence to conclude that the percentage of registered voters who will vote in the upcoming election will be higher than 10%. - The data suggest the population proportion is not
**significantly**higher than 10% at αα = 0.01, so there is statistically significant evidence to conclude that the percentage of registered voters who will vote in the upcoming election will be equal to 10%.

- The data suggest the populaton proportion is

Answer #1

a)

For this study, we should use Select an answer z-test for a
population proportion

b)

Below are the null and alternative Hypothesis,

Null Hypothesis: p = 0.10

Alternative Hypothesis: p > 0.10

c)

P = 47/316 = 0.1487

Test statistic,

z= (P -p)/sqrt(p*(1-p)n)

= ( 0.1487 - 0.10)/sqrt(0.10*(1-0.10)/316)

= 2.886

d)

P-value Approach

P-value = 0.0020

e)

As P-value < = alpha,

f)

reject null hypothesis.

g)

The data suggest the populaton proportion is significantly higher than 10% at αα = 0.01, so there is statistically significant evidence to conclude that the the percentage of all registered voters who will vote in the upcoming election will be higher than 10%.

Only 12% of registered voters voted in the last election. Will
voter participation increase for the upcoming election? Of the 321
randomly selected registered voters surveyed, 51 of them will vote
in the upcoming election. What can be concluded at the αα = 0.10
level of significance?
For this study, we should use Select an answer z-test for a
population proportion t-test for a population mean
The null and alternative hypotheses would be:
H0:H0: ? p μ Select an answer ≠...

Only 11% of registered voters voted in the last election. Will
voter participation change for the upcoming election? Of the 300
randomly selected registered voters surveyed, 48 of them will vote
in the upcoming election. What can be concluded at the αα = 0.01
level of significance?
For this study, we should use Select an answer z-test for a
population proportion t-test for a population mean
The null and alternative hypotheses would be:
H0:H0: ? μ p Select an answer =...

Only 14% of registered voters voted in the last election. Will
voter participation decline for the upcoming election? Of the 365
randomly selected registered voters surveyed, 44 of them will vote
in the upcoming election. What can be concluded at the αα = 0.01
level of significance?
For this study, we should use Select an answer t-test for a
population mean z-test for a population proportion
The null and alternative hypotheses would be:
H0:H0: ? p μ Select an answer ≠...

Only 16% of registered voters voted in the last election. Will
voter participation decline for the upcoming election? Of the 347
randomly selected registered voters surveyed, 45 of them will vote
in the upcoming election. What can be concluded at the αα = 0.05
level of significance?
For this study, we should use Select an answer z-test for a
population proportion t-test for a population mean
The null and alternative hypotheses would be:
H0:H0: ? μ p ? ≠ > <...

Only 13% of registered voters voted in the last election. Will
voter participation change for the upcoming election? Of the 306
randomly selected registered voters surveyed, 55 of them will vote
in the upcoming election. What can be concluded at the αα = 0.10
level of significance?
For this study, what sampling distribution would be used? Select
an answer -
Student's t distribution
binomial distribution
uniform distribution
standard normal distribution
The null and alternative hypotheses would be:
H0:
H1:
The...

Only 16% of registered voters voted in the last election. Will
voter participation decline for the upcoming election? Of the 389
randomly selected registered voters surveyed, 43 of them will vote
in the upcoming election. What can be concluded at the α = 0.10
level of significance? For this study, we should use The null and
alternative hypotheses would be: H0: (please enter a decimal) H1:
(Please enter a decimal) The test statistic = (please show your
answer to 3...

Only 18% of registered voters voted in the last election. Will
voter participation increase for the upcoming election? Of the 365
randomly selected registered voters surveyed, 84 of them will vote
in the upcoming election. What can be concluded at the αα = 0.05
level of significance?
For this study, we should use Select an answer z-test for a
population proportion t-test for a population mean
The null and alternative hypotheses would be:
H0:H0: ? μ p ? = ≠ >...

You are conducting a study to see if the proportion of voters
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For this study, we should use Select an answer t-test for a
population mean z-test for a population proportion
The null and alternative hypotheses would be:
Ho: ? p μ Select an answer < > ≠...

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who prefer the Democratic candidate is significantly smaller than
55% at a level of significance of αα = 0.01. According to your
sample, 26 out of 56 potential voters prefer the Democratic
candidate.
For this study, we should use Select an answer z-test for a
population proportion t-test for a population mean
The null and alternative hypotheses would be:
Ho: ? μ p ? ≠ < = > (please enter...

You are conducting a study to see if the proportion of voters
who prefer the Democratic candidate is significantly smaller than
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sample, 51 out of 88 potential voters prefer the Democratic
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For this study, we should use Select an answer t-test for a
population mean z-test for a population proportion
The null and alternative hypotheses would be:
Ho: ? p μ Select an answer < > =...

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