11 (In The famed environmentalist, Dr. Abby Tat, is doing research related to Earth Day 2019....
11 (In The famed environmentalist, Dr. Abby Tat, is doing research related to Earth Day 2019. Her current study deals with recycling plastic water bottles. After Earth Day 2018, the probability of somebody recycling his or her plastic water bottles was .42, which was higher than on Earth Day 2017. She hypothesizes that, as in the past, the heightened public awareness about Earth Day and the Green Movement should even further increase the probability that a person will recycle their plastic water bottles. Dr. Tat surveys a randomly selected group on April 22, 2019 and finds of 51 people surveyed, 39 recycled their plastic water bottles. Using this information, test Dr. Tat's hypothesis at the.05 level of significance.