Some researchers claim that herbal supplements such as ginseng or ginkgo biloba enhance humanmemory. To test this claim, a researcher selects a sample of n= 25 college students. Each student isgiven a ginkgo biloba supplement daily for six weeks and then all the participants are given astandardized memory test. For the population, scores on the test are normally distributed with u= 70 and o= 15. The sample of n= 25 students had a mean score of M= 75.a. Use a two-tailed test with a = .05. Conduct the four steps for hypothesis testing and labeleach step: Step1, Step 2, Step 3, and Step 4.b. Calculate Cohen's d.c. Are the data sufficient to conclude that there is a significant difference? Write youranswer in the form of a sentence.