A random sample of 35 scores is taken and gives a sample mean of 71. From past data, we know the population standard deviation is 3 points. a. Label all that apply: , , s, n, x, p', q' b. Which distribution should you use for this problem, and why? c. Construct a 90% confidence interval for the population parameter that you are trying to find. Draw a curve, showing the "cut" mark and value. Show how you set up the equation, and of course, show the interval. d. An 80% confidence interval would be smaller than the interval in part c. Explain the logic behind that