In study of 1278 adults 583 said they has used alternative medicine in the previous years. In a more recent study of 2356 adults 919 said they had used alternative medicine1 year At a=0.10. Can you reject the claims that the population of adults using alternative medicine has not changed since the first study. Assume the random sample are independent.
a) identify the claim
b) find the critical values z=, and identify the rejection region
c) Find the standardized test statistic z=
d) Decide whether to reject or fail to reject the null hypothesis.
e) Interpret the decision