A Heartland Monitor poll taken in December 2016 obtained responses from 990 adult Americans to the question "How would you rate the current state of the economy? Is it excellent, good, fair, or poor?" The following table presents the results, along with the proportions of people who gave these responses in 2015. View 2015 Proportion 2016 Frequency Excellent 0.01 20 Good 0.21 278 Fair 0.45 403 Poor 0.33 289 Find the expected frequency of people who would rate current state of the economy as excellent in 2016. DO NOT ROUND the answer. Find the expected frequency of people who would rate current state of the economy as good in 2016. DO NOT ROUND the answer. Find the expected frequency of people who would rate current state of the economy as fair in 2016. DO NOT ROUND the answer.
A Heartland Monitor poll taken in December 2016 obtained responses from 990 adult Americans to the question "How would you rate the current state of the economy? Is it excellent, good, fair, or poor?" The following table presents the results, along with the proportions of people who gave these responses in 2015.
|
View |
2015 Proportion | 2016 Frequency |
| Excellent | 0.01 | 20 |
| Good | 0.21 | 278 |
| Fair | 0.45 | 403 |
| Poor | 0.33 | 289 |
Find the expected frequency of people who would rate current state of the economy as excellent in 2016. DO NOT ROUND the answer.
Find the expected frequency of people who would rate current state of the economy as good in 2016. DO NOT ROUND the answer.
Find the expected frequency of people who would rate current state of the economy as fair in 2016. DO NOT ROUND the answer.
Find the expected frequency of people who would rate current state of the economy as poor in 2016. DO NOT ROUND the answer.
Can we conclude that the proportions of people giving the various responses changed between 2015 and 2016? Use the 0.01 level of significance.
Can we conclude that the proportions of people giving the various responses changed between 2015 and 2016? Use the 0.01 level of significance.
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