SOLUTION: A random sample of 10 tins of oil filled in by an automatic machine gave the following weights in kg.
2.05, 2.01, 2.04, 1.98, 1.98, 1.96, 2.01, 1.99, 2.04, 2.02
can we accept
Algebra.Com
Question 1172474: A random sample of 10 tins of oil filled in by an automatic machine gave the following weights in kg.
2.05, 2.01, 2.04, 1.98, 1.98, 1.96, 2.01, 1.99, 2.04, 2.02
can we accept at 5% level of significance, the claim that the average weight of the tin is 2kg
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The mean is 2.008
the sd is 0.030
t df=9 =0.008/0.030/sqrt(10)
=0.843
critical value is 2.262
fail to reject Ho at the 5% level.
Answer is yes, the claim of 2 kg average weight is correct.
RELATED QUESTIONS
The mass of a 2 kg box of chocolates was checked by finding the masses of 150 boxes. The... (answered by CPhill)
A cook uses fifteen 2-kg bottles of cooking-oil over a 4-week period. If he decides to... (answered by jerryguo41)
3. The net weight of a sample bottles filled by a machine manufactured by Edne, and the... (answered by CPhill)
the net weights of a sample of bottles filled by a machine manufactured by Edne, and the... (answered by nyc_function)
A marketing manager at a big retail shop claims that the variance in the weights of... (answered by ElectricPavlov)
A machine comes in 2 sections. The weights of the section are x kg and b kg. The cost, c, (answered by Theo)
Cough-a-Lot children’s cough syrup is supposed to contain 6 ounces of medicine per... (answered by math_tutor2020)
I want a calculator or a mathematical equation for the following mathematical sequence,... (answered by ikleyn)
An inspector wants to estimate the weight of detergent in packets filled, by an automatic (answered by stanbon)