Pet Dog Cat Bird Other Ninth and Tenth 23.0 13.8 9.7 27.6 Grades Eleventh and Twelfth Grades Grade 22.0 13.2 9.3 26.4 Which of the following is the correct conclusion? Find the chi-square table here....

Extracted text: Pet Dog Cat Bird Other Ninth and Tenth 23.0 13.8 9.7 27.6 Grades Eleventh and Twelfth Grades Grade 22.0 13.2 9.3 26.4 Which of the following is the correct conclusion? Find the chi-square table here. O Since the P-value is less than 0.05, this student should reject the null hypothesis. There is convincing evidence that there is an association between grade level and preferred pet. Since the P-value is less than 0.05, this student should fail to reject the null hypothesis. There is not convincing evidence that there is an association between grade level and preferred pet. O Since the P-value is greater than 0.05, this student should reject the null hypothesis. There is convincing evidence that there is an association between grade level and preferred pet. O Since the P-value is greater than 0.05, this student should fail to reject the null hypothesis. There is not convincing evidence that there is an association between grade level and preferred pet.


Extracted text: 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 grade level is associated with type of pet. Let a = 0.05. The observed and expected counts are displayed in the tables. Observed counts: Pet Dog Cat Bird Other Ninth and Tenth 21 15 8 30 Grades Eleventh and Grade 24 12 11 24 Twelfth Grades Expected counts: Pet Dog Cat Bird Other Ninth and Tenth 23.0 13.8 9.7 27.6 Grades Grade