Once upon a time two of the hottest smartphones on the market were the iPhone6 and the Samsung Galaxy S6. CNet.com offered online reviews of all major cell phones, including battery life tests. In a review of the iPhone6, the talk-time battery life of 35 iPhones was measured. Similarly, the talk-time battery life of 30 Galaxy S6s was measured.

Two outputs are given below. Output 1 represents independent sample results and Output 2 represents dependent sample results. Which output should be used?

Output 1 Output 2 wil Mean of iphone6 UD = mean of the paired difference between iPhone6 Hz : Mean of Galaxy S6 and Galaxy S6 Difference Sam ple Diff. Std. Err. Difference Sample Diff. Std. Err. -0.71759861 0.189403 iPhone6 - Galaxy S6 -0.754246 0.192151 Possible p-values: 0.0001, 0.0002, 0.9999 Possible p-values: 0.0002, 0.0004, 0.9998