A takeaway chicken business sells chickens.

The weight of each chicken should be as close as possible to 2.00 kg.

A random sample of 26 chickens prepared over the past few weeks had a mean weight of 1.60kg with a standard deviation of 0.50kg.

Required: Using a two tailed test and a significance level of 0.05 would you accept or reject that the average weight of the chicken is the required 2.00 kg?

Show your calculation workings and specify which test statistic (Z or t-test) you have used.