please answer this question :)

[9] 3. Studies have shown that fish can have distinct "personalities". Guppies are known to be schooling" fish (that travel in groups and swim in coordinated directions), but individual guppies show differences in how "brave" they are. While most guppies are very shy and jumpy, a subset of guppies show a "brave" personality type, and show less of a response to predators and are generally more curious. Previous research suggests that the proportion of brave guppies in the population is roughly p= .15, but you wish to know whether this proportion differs in particularly dangerous waters. [4] (a) A sample of n = 120 guppies are collected from Danger Lake and tested to determine the number who are brave. Ten (10) guppies demonstrate the brave personality type. Test the null hypothesis that the true population proportion is p = .15 in Danger Lake. Use a significance threshold of a = 0.05. State all relevant hypotheses (in symbols) and test statistics/distributions, as well as the appropriate conclusion of the test. Explain how you would calculate the p-value (i.e. show what you'd input into Geogebra), but then proceed assuming the correct p-value is 0.04