1. Which group spends more time on social media? Assume alpha = .05 for a two-ta
ID: 3336929 • Letter: 1
Question
1. Which group spends more time on social media? Assume alpha = .05 for a two-tailed test.
2. 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?
Group Statistics sex 2014 RO1 RS SEX F1234 Std Deviation Std. Error Mean Mean SocialNetHr 2014 CO9 #HR/W SOCIAL NET WEB F1 1 MALE:(1) 184 3.60 2.382 176 FEMALE:(2) 220 5.05 2.568 173 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means idence Interva the Difference Sig. (2- tailed) Mean Difference Std. Error Difference 248 247 Sig. df pper alNetHr 2014 CO9 #HR/W SOCIAL NET WEB F1 qual variances assumed 2.866 091-5.828 402 -1.447 1.935 .959 Equal variances not assumed 5.867 397.706 1.447 -962 -1.932Explanation / Answer
The mean of MALE is 3.60, essestinally meaning 3-5hours
The mean of FEMALE is 5.05, esentially meaning 6-9 hours
1. FEMALE spends more time. If we take .05 as critical value, this value is more than our 3 tailed Sig. value of .000( check the Sig.(2-tailed column ) for this.
2. The difference is 1.447. FEMALES are 1.447 above than males on the Ordinal scale.
Also, the t-test for equality of Means suggests a p-value of 0.000, which means it is less than .05, which means significance difference between the means
3. Even if alpha is changed to .01, we have a p-value less than .01. As called out in the 2) our p-value is .00 and hence, our differeence between means will still be significant
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