Asurvey claims that 7 out of 10 customers recommend western drugs for pharmacy issues. to test the claim, a random sample of 100 customers is obtained from the list of rewards customers. of these 100 customers, 75 indicate that they recommend using western drugs for pharmacy needs. we would like to know if this claim is accurate. a. state the null and alternative hypotheses. b. perform a one sample z-test for proportions. what is the test statistic? c. what is the associated p-value? d. state your conclusion at α = .05 e. interpret your findings