Based on the 2014 MTF survey, we compare social network media usage (measured by an ordinal scale: 1 = none, 2 = less than an hour, 3 = 1–2 hours, 4 = 3–5 hours, 5 = 6–9 hours, 6 = 10–19 hours, 7 = 20–29 hours, 8 = 30–39 hours, and 9 = 40+ hours) between males and females. (Recall that the MTF 2014 is a survey of teens in the 8th, 10th, and 12th grades.)
1. Interpret the group means for males and females. Which group spends more time on social media?
2. Assume alpha = .05 for a two-tailed test. What can you conclude about the difference in social network usage between the two groups?
3. If alpha were changed to .01, would your Step 5 decision change? Explain.

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Greup Statistics sex 2014 RO1 RS SEX F1234 Std. Deviation Std. Error Mean N Mean SocialNetHr 2014 C09 SHR/W SOCIAL NET WEB FI! 1 MALE:1) 184 3.60 2.382 176 2 FEMALE (2) 220 5.05 2.568 173 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means Sig. (2- tailed Mean Difference Std. Error Diference 95% Confidence Interval of the Difference Upper F Sig. df Lower SocialNetHr 2014 C09 #HR/W SOCIAL NET WEB FII Equal variances assumed 2. 866 .091 -5.828 402 000 -1.447 248 -1.935 959 Equal variances not assumed -5.867 397.706 .000 -1.447 .247 -1.932 -.962