Please, Help with these. It is urgent. Thank you.1- H0: ? ? 16.56 vs. HA: ? > 16.56. What is the test statistic for sample of size 30, mean 11.56, and standard deviation 2.99? Enter the test statistic with 2 decimal places.2- A sample of size 20 yields a sample mean of 23.5 and a sample standard deviation of 4.3. Test HO: Mean ? 25 at a=0.10. HA: Mean < 25. This is a one-tailed test with lower reject region bounded by a negative critical value.a) None of the other answers are correct.b) Pvalue 0.932.