Econ 230 1. Find the p-values for the following values of Z: One Tail Test. (1) Z = 1.41 (2) Z = -1.75 (3) Z = 2.36 Find the p-values for the following values of t: One Tail Test. (1) tdf=20 = 1.325 (1) tdf=20= -2.086 (3) tdf=20= .86 D.Find the p-values for parts B and C: two tail test 2. Finding critical Z-values and critical t-values. A. The meaning of the critical-values. If you are given the area in the tail (alpha) then find the value of Z. If you are given the area in the tail (alpha) then find the value of t. B. For a one-tailed test find the critical Z values for the following alpha's. (1) alpha = .01 (2) alpha = .05 (3) alpha = .10 C. For a one-tailed test find the critical t values for the following alpha's. Use 20 degrees of freedom. (1)alpha = .1 (2)alpha = .05 (3)alpha = .01 D. Repeat parts 2b and 2c for a two-tailed test 3. For each of the next three examples, do the following: (a) Determine the null and alternative hypotheses. (b) Define a Type I error. (c) Define a Type II error. A. Chevrolet's Silverado Truck. The Chevrolet Silverado gets an average fuel rating of 24 miles per gallon. GM has developed a new fuel injection system designed to increase the fuel efficiency of this model of car. A sample of ten cars will be tested with this new fuel injection system. The research hypothesis is that the new system increases fuel efficiency. B. Soft Drink. Carden's Carbonated Drink Company produces soft drinks in two litter containers that contain an average of at least 67.6 fluid ounces. A sample of 20 soft drinks will be selected to test the manufacturer's claim of the contents of the products. The government will test the validity of the claim that the soft drinks contain at least 67.6 ounces. C. Manufactured part. .Monica Johnson is a quality control inspector for a manufacturing company. Monica selects a sample of ten parts from a batch of 1000 parts and determines if the entire batch should be accepted or rejected. The average length of a particular part should be two inches