2. Given the scenarios below, would you use Z-Interval, T-Interval or not proceed?

a. In a means problem: n = 100, population is not known to be normal, population is not known and normality curve is nonlinear.

b. In a means problem: n = 45, population is known to be normal and population is known.

c. In a means problem: n = 10, population is known and normality curve is linear.

d. In a means problem: n = 15, population is not known to be normal, is not known and normality curve is not linear.

e. In a proportion problem: n = 50, p = .05.

f. In a proportion problem: n = 25, p =.48.