Test the claim about the population mean

Test the claim about the population mean µ with a z-test using the given sample statistics and level of significance a.

A. Claim: µ ? 0: a = 0.05. Statistics x = -0.69, s = 2.62, n = 60

B. Claim: µ = 7450: a = 0.05. Statistics x = 7512, s = 243, n = 57