Need Answer for a Problem! Please help - need the full worked steps to resolve the pr
1. The XYZ apartment has Eight washing machines. The probability of machines failing in any given year is as follows:
No Of machines failing
3
4
5
6
Probability
0.15
0.30
0.50
0.05
Is there reason to believe that the machine is defective?
2. A fertilizer mixing machine is set to give 12 kg of nitrate for every quintal bag of fertilizer.
Ten 100 kg bags are examined.
The percentage of nitrate are as follows:
11 14 13 12 13 12 13 14 11 12
Is there reason to believe that the machine is defective? (Value of t of 9 degrees of freedom is 2.262.)
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