a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v Select an answer |(please enter a decimal) Ha: ?v Select an answer (Please enter a decímal) c. The p-value = (Please show your answer to 4 decimal place
a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v Select an answer |(please enter a decimal) Ha: ?v Select an answer (Please enter a decímal) c. The p-value = (Please show your answer to 4 decimal place
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is
significantly larger than 71% at a level of significance of a = 0,10. According to your sample, 52 out of 65
potential voters prefer the Democratic candidate.
a. For this study, we should use Select an answer
b. The null and alternative hypotheses would be:
Ho: [? vSelect an answerv
(please enter a decimal)
Ha: ? vSelect an answerv
(Please enter a decimal)
c. The p-value =
(Please show your answer to 4 decimal places.)
d. The p-value is (?v a
e. Based on this, we should Select an answer v the null hypothesis.
f. Thus, the final conclusion is that ...
O The data suggest the population proportion is not significantly larger than 71% at a = 0.10, so
there is sufficient evidence to conclude that the proportion of voters who prefer the
Democratic candidate is equal to 71%.
O The data suggest the population proportion is not significantly larger than 71% at a = 0.10, so
there is not sufficient evidence to conclude that the proportion of voters who prefer the
Democratic candidate is larger than 71%.
O The data suggest the populaton proportion is significantly larger than 71% at a = 0.10, so
there is sufficient evidence to conclude that the proportion of voters who prefer the
Democratic candidate is larger than 71%
g. Interpret the p-value in the context of the study.
OIf the population proportion of voters who prefer the Democratic candidate is 71% and if
another 65 voters are surveyed then there would be a 5.49% chance that more than 80% of the
65 voters surveyed prefer the Democratic candidate.
Olf the sample proportion of voters who prefer the Democratic candidate is 80% and if another
65 voters are surveyed then there would be a 5.49% chance of concluding that more than 71%
of all voters surveyed prefer the Democratic candidate.
O There is a 5.49% chance that more than 71% of all voters prefer the Democratic candidate.
O There is a 5.49% chance of a Type I error.
h. Interpret the level of significance in the context of the study.
O If the population proportion of voters who prefer the Democratic candidate is 71% and if
another 65 voters are surveyed then there would be a 10% chance that we would end up falsely
concuding that the proportíon of voters who prefer the Democratic candidate is larger than
71%
O If the proportion of voters who prefer the Democratic candidate is larger than 71% and if
another 65 voters are surveyed then there would be a 10% chance that we would end up falsely
concuding that the proportion of voters who prefer the Democratic candidate is equal to 71%.
O There is a 10% chance that the proportion of voters who prefer the Democratic candidate is
larger than 71%.
O There is a 10% chance that the earth is flat and we never actually sent a man to the moon.
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