Question

4 of 21 The two-way table below gives the chi-square components for the appropriate test on these data Facebook account? Education Level Yes 0 1.92 1.35 High school or less 3.92 2.77 0.09 Some college College degree or more 0.05 Based on this information, which of the following statements are valid? The observed counts for the "College degree or more" row are farther from their corresponding expected counts than the observed counts for "High School or less" and "Some college." "High school or less" individuals differ the most from the sample as a whole. III. The observed count for "Some college/No Facebook" is considerably higher than we would expect if the null hypothesis were true I, II and III are valid I only II and III only II only III only Save Question 7 (1 point) 4 of 21 Question 6 (1 point) A recent poll by Pew research asked 856 randomly selected adults about their education level and whether or not they have a Facebook account. Here are the results Facebook account? Education Level otal Yes 0 157 183 104 High school or less Some college 50 http://aths.ankabut .ac.ae/d21/Ims/quizzing/user/attempt/quiz-at..&impcfr&pg=1&qǐ-309513&ai-2494894&dnbs0&cfql:0&d2l_body-types! Page 3 of 21 Quiz ATHS G12 AP Statistics-ll - Applied Technology High School 5/29/19, 5:48 PM 110 College degree or more 235 45 281 Total 575 56 The two-way table below giyes the chi-square components for the appropriate test on these data Facebook account? Yes Education Level 0 1.92 High school or less 3.92 1.35 Some collegc 2.77 College degre 0.05 0.09 e or more Based on this information, which of the following statements are valid?

Answer 1

Chi-square components tell us the deviation between the observed and expected counts. More the chi-square, more is the difference.

A) is incorrect as the observed counts for college degree or more are close to the expected counts.

B) is correct as the chi-square statistic is more as a whole than the other education levels.

C) is correct as the observed count for Some college is considerably higher than expected because chi-square is large.

Hence, correct option is C) II and III only