A company has a contract to supply specialized batteries to a manufacturer with a mean width of 54mm and a variance of 1.8 or less with an alpha of 0.05.The company randomly tests 20 of these batteries to ensure that they are meeting the requirements of the contract.If the most recent test had a variance of 1.9, what would be the observed chi-squared value?
A)32.85
B)17.91
C)20.06
D)30.14
E)1.645

Question

Quizplus · Accepted Answer

The Answer of A company has a contract to supply specialized batteries to a manufacturer with a mean width of 54mm and a variance of 1.8 or less with an alpha of 0.05.The company randomly tests 20 of these batteries to ensure that they are meeting the requirements of the contract.If the most recent test had a variance of 1.9, what would be the observed chi-squared value?
A)32.85
B)17.91
C)20.06
D)30.14
E)1.645

A Company Has a Contract to Supply Specialized Batteries to a Manufacturer