Question

Only 15% of registered voters voted in the last election. Will voter participation increase for the upcoming election? Of the 355 randomly selected registered voters surveyed, 67 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: ? μ p Select an answer ≤ ≠ > < ≥ = (please enter a decimal)

H1:H1: ? p μ Select an answer ≤ < ≠ > ≥ = (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 fail to reject accept reject the null hypothesis.
- Thus, the final conclusion is that ...
- The data suggest the population proportion is not significantly higher than 15% at αα = 0.10, 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 15%.
- The data suggest the population proportion is not significantly higher than 15% at αα = 0.10, 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 15%.
- The data suggest the populaton proportion is significantly higher than 15% at αα = 0.10, 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 15%.

Answer #1

a). we should use a z-test for a population proportion.

b). The null and alternative hypotheses would be:

c). The test statistic is given by:

d) p-value:**0.0205**

e) The p-value is ≤ α

f) Based on this, we should reject the null hypothesis

g) The data suggest the population proportion is significantly higher than 15% at αα = 0.10, so there is statistically significant evidence to conclude that the percentage of all registered voters who will vote in the upcoming election will be higher than 15%.

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 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 ? < ≠ >...

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 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 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 ? = ≠ >...

1.
Only about 15% of all people can wiggle their ears. Is this
percent higher for millionaires? Of the 303 millionaires surveyed,
48 could wiggle their ears. 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
The p-value = (Please show your answer to 3 decimal
places.
The p-value...

You are conducting a study to see if the proportion of voters
who prefer the Democratic candidate is significantly smaller than
59% at a level of significance of αα = 0.10. According to your
sample, 51 out of 88 potential voters prefer the Democratic
candidate.
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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