A student selects a random sample of 145 students from her large high school. For each student, she records the grade level and their favorite type of pet. She would like to know if there is convincing evidence that the grade level is associated with type of pet. Let = 0.05.

The observed and expected counts are displayed in the tables.

Observed counts:



Expected counts:



Which of the following are the values of the chi-square statistic and P-value?

Find the chi-square table here.

χ2 = 0.36, P-value < 0.05
χ2 = 0.79, P-value < 0.05
χ2 = 0.82, P-value > 0.25
χ2 = 1.61, P-value > 0.25