Research done in the mid 1980s indicated that 80% of grizzly bears in the greater ecosystem of Yellowstone National Park entered their den for hibernation by the last day of November. This has come into question as of late. Researchers have hypothesized that climate change has postponed bears entering hibernation until later in the season; that is, researchers believe that a smaller percentage of bears are entering their den for hibernation by the last day of November.
Sixty-two Yellowstone grizzly bears were tracked via radio monitors, which allow scientists to pinpoint when the bears enter their dens with a high degree of accuracy. Of the 62 Yellowstone grizzly bears being tracked, 42 entered their den for hibernation by the last day of November.
For each of the following sample results, circle whether the p-value would increase, decrease, or remain the same if we were to track another sample of Yellowstone grizzly bears.
-21 of 31 bears had entered their den for hibernation by the last day of November.

Question

Research done in the mid 1980s indicated that 80% of grizzly bears in the greater ecosystem of Yellowstone National Park entered their den for hibernation by the last day of November. This has come into question as of late. Researchers have hypothesized that climate change has postponed bears entering hibernation until later in the season; that is, researchers believe that a smaller percentage of bears are entering their den for hibernation by the last day of November. 
Sixty-two Yellowstone grizzly bears were tracked via radio monitors, which allow scientists to pinpoint when the bears enter their dens with a high degree of accuracy. Of the 62 Yellowstone grizzly bears being tracked, 42 entered their den for hibernation by the last day of November.
For each of the following sample results, circle whether the p-value would increase, decrease, or remain the same if we were to track another sample of Yellowstone grizzly bears.
-21 of 31 bears had entered their den for hibernation by the last day of November.

Quizplus · Accepted Answer

Tracking another sample with a higher proportion of bears entering their dens by the last day of November (21 out of 31) compared to the original sample (42 out of 62) would result in a p-value that increases, as it suggests less evidence against the null hypothesis that the proportion is still 80%.

Research Done in the Mid 1980s Indicated That 80% of Grizzly