Question

A study by a reputable research group captured multitasking activities of adults who use different devices while watching TV. The study reported that 321of 439 ​(73%)smartphone users​ sampled,194 of 345 (56​%)computer users​ sampled, and 146 of 265 (55​%) tablet users sampled used their device to check social media unrelated to the video content while watching TV. Complete parts​ (a) through​ (c) below.

a. Is there evidence of a significant difference among the​ smartphone, computer, and tablet users with respect to the proportion who use their device to check social media unrelated to the video content while watching​ TV? (Use alpha equals 0.05 State the null and alternative hypotheses.

b) Find x square stat, p value & critical values. Round to three decimal places

c)If​ appropriate, use the Marascuilo procedure and alpha equals 0.05to determine which groups differ.

Answer 1