The mean (average) weight of three dogs is 38 pounds. One of the dogs, Shaggy, weighs
1 answer:
Answer:
Eda's weight is 34 pounds.
Step-by-step explanation:
Given that,
The mean (average) weight of three dogs is 38 pounds.
Weight of Shaggy = 46 pounds
Let weight of Eda and Bruno is x.
The formula of average is given by :
Average = sum of observations/no. of observations
Hence, Eda's weight is 34 pounds.
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Step-by-step explanation:
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Answer:
the x² test statistic 13.71
Option a) 13.71 is the correct answer.
Step-by-step explanation:
Given the data in the question;
Feeder 1 2 3 4
Observed visits; 60 90 92 58
data sample = 300
Expected = 300 / 4 = 75
the x² test statistic = ?
= ∑[ (
-
)²/
]
= [ (60 - 75)² / 75 ] + [ (90 - 75)² / 75 ] + [ (92 - 75)² / 75 ] + [ (58 - 75)² / 75 ]
= [ 3 ] + [ 3 ] + [ 3.8533 ] + [ 3.8533 ]
= 13.7066 ≈ 13.71
Therefore, the x² test statistic 13.71
Option a) 13.71 is the correct answer.