final stats question

Suppose that we went to check whether the average weight of a lion is more than 600 pounds.

Xbar=660, standard deviation= 70 pounds, and sample size n=11

A) state the null hypothesis H0 and the alternative hypothesis  H1

B) what is the observed value for the test statistic 

C) what is the critical value at 5% significance level

D) what will be your conclusion ay 5% significance level and why? 

"Is this question part of your assignment? We can help"