A Company Believes That It Controls More Than 30% of the Total

Multiple Choice

A company believes that it controls more than 30% of the total market share for one of its products.To prove this belief, a random sample of 144 purchases of this product is contacted.It is found that 50 of the 144 purchases were of this company's brand.If a researcher wants to conduct a statistical test for this problem, the test would be _______.

A) a one-tailed test
B) a two-tailed test
C) an alpha test
D) a finite population test
E) a finite sample test