how do you do longhand

Use a ttest to test the claim about the population mean [1 at the given level of signicance I: using the given sample statistics. Assume the population is normally distributed. Claim: p2 8100; II: [1.01 Sample statistics: )_( = 7800, s =43E], n =20 What are the null and alternative hypotheses? C! A. HO: [1358100 0 B. HO: [1:8100 a: p=810|3| a: [1358100 0 E. 13: [128100 0 D. 03 [158100 Ha:p<:810 he:>