Question 1
Both before and after a recent earthquake, surveys were
conducted asking voters which of the three candidates they planned
on voting for in the upcoming city council election. Has there been
a change since the earthquake? Use a level of significance of 0.05.
Table shows the results of the survey. Has there been a change in
the distribution of voter preferences since the
earthquake?
| Peter | Alan | Sui | |
|---|---|---|---|
| Before | 1838 | 418 | 1475 |
| After | 1420 | 329 | 1140 |
What is the chi-square test-statistic for this data?
χ2=χ2=
The contingency table below provides the following information: the observed cell totals, (the expected cell totals) and [the chi-square statistic for each cell].
Answer is 0.0555
![Results Sul Peter 1838 (1836.19) [0.00] 418 (421.01) [0.02] 1475 (1473.80) [0.00] 1420 (1421.81) [0.00] |329 (325.99) [0.03] 1140 (1141.20) [0.00] Alan before after Row Totals 3731 2889 Column Totals 3258 747 2615 6620 (Grand Total)](http://img.homeworklib.com/questions/68569560-73f6-11ea-9f36-0791302dc682.png?x-oss-process=image/resize,w_560)
The chi-square statistic is 0.0555.
The p-value is .972643.
The result is not significant at p < .05.
Question 1 Both before and after a recent earthquake, surveys were conducted asking voters which of...