12. which of the following are true? i. a null hypothesis is always stated in terms of a sample value. ii. random samples are only needed if the sample size is very small compared to the population. iii. a type i error can be made only if the null hypothesis is true.

The equation represents the function f, and the graph represents the function g. f(x)=3(5/2)^x determine the relationship between the growth factors of f and g. a. the growth factor of g is twice the growth factor of f. b. the growth factor of f is twice the growth factor of g. c. the growth factor of f is 2.5 times the growth factor of g. d. the growth factor of f is the same as the growth factor of g.