Kitch Master
en
Bedroom
25.2 18
17.4 22.9
22.8 26.4
21.9 24.8
19.7 26.9
23
17.8
19.7 24.6
16.9 21
21.8
23.6
1)
point estimate of the difference
between the population mean
avg_
1
21.2
avg_
2
22.8
point
diff
-1.6
2)
95% confidence
interval
Mast
er
Kitch Bedr
en oom
mea 21.2 22.8
n
0
0
sd 2.70 3.55
10.0
n
0
8.00
sd/n 0.73 1.58
17.3 17.0
8
0
df
t(a/2
,df) 2.11
lowe
r
uppe
r
4.81
1.60
577