The results of a survey are shown in the table. The data shows the number of votes by fans for contestants on a popular television show. The observed counts are: Contestant A: 142, B: 120, C: 138. Which test is used to determine if the data is significantly different than expectations?

This test is designed to examine the relationship between two categorical variables to see if they are independent of each other. In this case, we are not assessing the relationship between variables but rather comparing observed counts to expected values for a single variable, making this test inappropriate.

This test evaluates whether different populations have the same distribution across categories. While it involves multiple groups, the situation here focuses solely on the observed votes for contestants, which does not involve comparing distributions across different populations.

A Student's t-test is used to compare the means of two groups to determine if they are statistically different from each other. Since the data involves categorical counts rather than continuous variables, this test does not apply to the given voting scenario.