For the second team of researchers, looking at 85 encounters, the standard deviation exceeded 0.04. (See question 3.) The researchers now plan to take an entirely different sample of whale and cruise ship encounters in the west arm sub-region of Glacier Bay. They continue to assume that the true population proportion p = 0.20. The researchers would like to ensure that the standard deviation of the sample proportion is no larger than 0.03. the formula for the standard deviation of the sample proportions . What can the researchers actually do to decrease the standard deviation