Question

Chocolates of 250 g produced in a factory
were observed to have standard deviation
of 2 g. A random sanple of 20 chocolates
showed a standard deviation of 1.5 g. What
is the chi square value for the sample ?
(1) 7.2
(2) 6.0
(3) 12.0
(4) 33.3​

Answer 1

Answer:

12.0is the exact answer

thanks