In an exercise in Chapter 7, the claim that chickens fed with enriched feed attain a mean

Question:

In an exercise in Chapter 7, the claim that chickens fed with enriched feed attain a mean weight greater than 1.77 kg was tested. In an experiment with an enriched feed mixture, nine chickens are born that attain the weights (in kg) given below.
1.741.771.901.801.881.871.791.811.89
Test that the median weight is greater than 1.77 kg at a 0.05 level of significance.