The Presidential race is in progress. The Republican side is undecided. 200 Republicans were randomly selected...
Homework Answers
The hypothesis being tested is:
H0: There is no preference for the Republican side in the Presidential race from Trump, Cruz, Kaisek, or Rubio
Ha: There is a preference for the Republican side in the Presidential race from Trump, Cruz, Kaisek, or Rubio
| observed | expected | O - E | (O - E)² / E |
| 100 | 50.000 | 50.000 | 50.000 |
| 52 | 50.000 | 2.000 | 0.080 |
| 33 | 50.000 | -17.000 | 5.780 |
| 15 | 50.000 | -35.000 | 24.500 |
| 200 | 200.000 | 0.000 | 80.360 |
| 80.36 | chi-square | ||
| 3 | df | ||
| 2.57E-17 | p-value |
The p-value is 0.0000.
Since the p-value (0.0000) is less than the significance level (0.05), we can reject the null hypothesis.
Therefore, we can conclude that there is a preference for the Republican side in the Presidential race from Trump, Cruz, Kaisek, or Rubio.
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