hypothesis testing

Given the sample mean = 21.95, sample standard deviation = 5.4394, and N = 4G for the low income group, Test the claim that the mean nickel diameter drawn by children in the lowincome group is greater than 21.21 mm. Test at the H.111 signicance level. all Identify the correct alternative hypothesis: Op. : 21.21 Op. E:- 21.21 Op