A study was conducted to determine if students in differentcollege years differ on the number of hours of sleep they obtain.On a specified mid-semester Wednesday morning 25 Freshmen, 25Sophomore, 25 Junior and 25 Senior college students reported thenumber of Hours of Sleep they had obtained on the previous evening.Answer the following question referring to the following tables.Descriptive Statistics Year Mean Std. Deviation N Freshmen 7.70801.86881 25 sophomore 7.1600 1.34412 25 Junior 7.4400 1.47422 25Senior 5.8400 1.24766 25 Total 7.0370 1.64597 100 Tests ofBetween-Subjects Effects Source Sum of Squares df Mean Square FSig. YEAR 51.515 3 17.172 7.607 .000 Error 216.698 96 2.257 Total5220.150 100 Multiple Comparisons LSD Mean Difference (I-J) Std.Error Sig. (I) Year (J) Year Freshmen sophomore .5480 .42495 .200Junior .2680 .42495 .530 Senior 1.8680* .42495 .000 sophomoreFreshmen -.5480 .42495 .200 Junior -.2800 .42495 .512 Senior1.3200* .42495 .002 Junior Freshmen -.2680 .42495 .530 sophomore.2800 .42495 .512 Senior 1.6000* .42495 .000 Senior Freshmen-1.8680* .42495 .000 sophomore -1.3200* .42495 .002 Junior -1.6000*.42495 .000
Based off of this data:
If we used multiple t-tests what would the overall alpha levelbe?
What is the Null Hypothesis for the one-way ANOVA?
Is the F test significant (give F and p)?
What do the multiple comparisons tell us? (i.e., whatconclusions can be made about differences in attendance betweenclasses?)
