If I quadrupled (i.e. times 4) my sample size, how does that affect the standard error of the mean? 0 The standard error is quadrupled O The standard error becomes one-fourth of the original 0 The standard error becomes bigger by a factor of about 2 O The standard error becomes smaller by a factor of about 2 A coin in my collection is unfair, having a 60% probability of heads. I flipped it 10 times and got 7 heads, so the relative frequency of heads is 70%. In this problem, what is the value of the parameter? Q 30% Q 60% Q 40% Q 70% In a population of size N = 4, three individuals have z-scores -1, 0, and +2. The population has mean p. = 15 and standard deviation 0' = 3. What is the unstandardized fourth score