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klemol [59]
3 years ago
14

In a completely randomized design involving three treatments, the following information is provided:Treatment 1Treatment 2Treatm

ent 3Sample Size5105Sample Mean489The overall mean for all the treatments is _______.
Mathematics
1 answer:
Aliun [14]3 years ago
6 0

Answer:

7.25

Step-by-step explanation:

Given :

___________ Sample size __ sample mean

Treatment 1 ____ 5 _______ 4

Treatment 2 ____ 10 ______ 8

Treatment 3 ____ 5 _______ 9

Sample size = (5 + 10 + 5). = 20

Overall mean = ((5*4). + (10*8) + (5*9)) / 20

Overall mean = (20 + 80 + 45) / 20

= 145 / 20

= 7.25

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