For your email you use a filter to block spam from your inbox. The number of ite
ID: 2959850 • Letter: F
Question
For your email you use a filter to block spam from your inbox. The number of items blocked by day of week is recorded and a statistical software system is used to perform the analysis that follows. Here are the results:
Source DF SS MS F P
Factor 6 1367.8 228.0 5.72 0.000
Error 48 1913.2 39.9
Total 54 3281.0
S=6.313 R-Sq=41.69% R-Sq(adj) = 34.40%
Individual 95% CIS for Mean Based On
Pooled StDev
Level N Mean St Dev ----+-------- + ----------+ --------------+ ---------
Monday 10 74.000 6.164 (------- * ----------)
Tuesday 9 66.111 7.288 (--------- * -------)
Wednesday 7 74.143 2.268 (-------*----------------)
Thursday 8 62.375 5.041 (-------*---------)
Friday 8 75.125 4.454 (---------*-------------)
Saturday 5 63.200 7.259 (-----------*----------)
Sunday 8 72.375 9.164 (--------*--------)
---- + ---------- + --------- + --------- + ---------
60.0 66.0 72.0 78.0
Use the .05 significance level to test if this evidence suggests a difference in the means for the different days of the week.
Explanation / Answer
Since the p-value is almost 0 (0.000) we reject Ho then there is a strong evidence that suggests a difference in the means for the different days of the week.
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