You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly different from 71% at a level of significance of αα = 0.01. According to your sample, 41 out of 58 potential voters prefer the Democratic candidate. For this study, we should use The null and alternative hypotheses would be: Ho: (please enter a decimal) H1: (Please enter a decimal) The test statistic = (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 the null hypothesis.
You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly different from 71% at a level of significance of αα = 0.01. According to your sample, 41 out of 58 potential voters prefer the Democratic candidate. For this study, we should use The null and alternative hypotheses would be: Ho: (please enter a decimal) H1: (Please enter a decimal) The test statistic = (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 the null hypothesis.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly different from 71% at a level of significance of αα = 0.01. According to your sample, 41 out of 58 potential voters prefer the Democratic candidate.
- For this study, we should use
- The null and alternative hypotheses would be:
Ho: (please enter a decimal)
H1: (Please enter a decimal)
- The test statistic = (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 the null hypothesis.
- Thus, the final conclusion is that ...
- The data suggest the population proportion is not significantly different from 71% at αα = 0.01, so there is not sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is different from 71%.
- The data suggest the population proportion is not significantly different from 71% at αα = 0.01, so there is sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is equal to 71%.
- The data suggest the populaton proportion is significantly different from 71% at αα = 0.01, so there is sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is different from 71%
- Interpret the p-value in the context of the study.
- There is a 95.84% chance of a Type I error.
- If the sample proportion of voters who prefer the Democratic candidate is 70% and if another 58 voters are surveyed then there would be a 95.84% chance that we would conclude either fewer than 71% of all voters prefer the Democratic candidate or more than 71% of all voters prefer the Democratic candidate.
- There is a 95.84% chance that the percent of all voters who prefer the Democratic candidate differs from 71%.
- If the population proportion of voters who prefer the Democratic candidate is 71% and if another 58 voters are surveyed then there would be a 95.84% chance that either fewer than 70% of the 58 voters surveyed prefer the Democratic candidate or more than 72% of the 58 voters surveyed prefer the Democratic candidate.
- Interpret the level of significance in the context of the study.
- If the proportion of voters who prefer the Democratic candidate is different from 71% and if another 58 voters are surveyed then there would be a 1% chance that we would end up falsely concluding that the proportion of voters who prefer the Democratic candidate is equal to 71%.
- If the population proportion of voters who prefer the Democratic candidate is 71% and if another 58 voters are surveyed then there would be a 1% chance that we would end up falsely concluding that the proportion of voters who prefer the Democratic candidate is different from 71%
- There is a 1% chance that the proportion of voters who prefer the Democratic candidate is different from 71%.
- There is a 1% chance that the earth is flat and we never actually sent a man to the moon.
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