A16-foot ladder is placed against the side of a building as shown in figure 1 below. the bottom of the ladder is 8 feet from the base of the building. in order to increase the reach of the ladder against the building, the ladder is moved 4 feet closer to the base of the building, as shown in figure 2. to the nearest foot, how much farther up the building does the ladder now reach?

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.