9:20 0 12 0.93 KB/S Go all .1 96 WEEK-9-16_CM_MDL_4Q_... Q . . . Conceptual Math and Beyond, Statistics and Probability Comparing the Sample Proportion and Population Proportion, Lesson 4, Tests of Hypothesis, Chapter 5, Pp.193-199, Ocampo et. al., (2016) Conceptual Math and Beyond, Statistics and Probability 14 ASIAN INSTITUTE OF COMPUTER STUDIES (AICS) Activity 2: Access Denied e to Directions. Find the critical value or values for the t-test for each of the following. Draw the rejection region. ents a Type of Test Critical Value of t Rejection Region mly 10 0.05 right-tailed this ents 1.7? 18 0.10 two-tailed ours zach 0.01 left-tailed Jlbs an Find the critical value, draw the rejection region, compute the value of the test statistic, and compute the value of the test statistic, and make a decision whether to accept or reject the null hypothesis in each of the following situations. bed Hypotheses Given Rejection Region Test Decision in a Value elief Ho: M = 9.8 X = 10.0 15 Ha: H > 9.8 S = 4.3 n = 12 a = 0.05 -2 -1 15 ASIAN INSTITUTE OF COMPUTER STUDIES (AICS) E O2. A light-bulb manufacturer regularly advertises that his bulbs last 900 hours with a standard deviation of 75 hours. A random sample is chosen before each campaign to make sure that the claim is correct. If one such sample of 20 bulbs show a mean of 925 hours, can the advertising claim be considered an underestimate at the 0.05 level of significance? Find t statist to acce 3. A psychologist believes that it will take at least an hour for certain disturbed Hypo children to learn a task. A random sample of 30 of these children results in a mean of 50 minutes to learn the task. Should the psychologist modify her belief Ho: H at the 0.01 level if the population standard deviation can be assumed to be 15 Ha: minutes? 15 Ho:H = 80 X = 75 Hail