A store in Walnut due to drop in sale. The company will close if there is evidence that less than 35% households in the area have a favorable view of its brand. It conducts a telephone poll of 300 randomly selected households in the area and finds that 90 have a favorable view. Required:
a. State the test of hypothesis that is of interest to the clothing company.
b. b. The value of the test statistic in this problem is approximately equal to: