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 purchasers of this product is contacted. It is found that 50 of the 144 purchased this company's brand of the product. If a researcher wants to conduct a statistical test for this problem, the test would be _______ .
Select one:
a. a finite sample test
b. a two-tailed test
c. a finite population test
d. an alpha test
e. a one-tailed test
我觉得选择e，因为我认为H1的话是小于等于30%，但是我又不确定题目说的大于30%是h0还是h1啊？怎么办？不过好像无关紧要，但是怎么选择先才是问题？？！！
