ISDS 2001 : ISDS 2000 SAMPLE TEST 3 Revised 0310 1
15 Mar 2019
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According to eric schlosser, author of the best-selling book, fast-food nation, 90% of american children between the ages of three and nine visit a fast food restaurant at least once per week. Use . 01 level of significance and answer questions 1 - 6 in order to test the hypotheses ho: = 0. 90 versus h1: 0. 90. The sample proportion of students responding that they eat at fast food restaurants at least once per week is. The critical value(s) is(are): none of the above none of the above. Based upon the p-value approach, you would: a. reject not reject. 2. 086 none of the above become wider more narrow remain the same not enough information to answer. A confidence interval for a population mean is determined to be (100,200). If the sample size is increased, all other terms held constant, then the width of the interval for will: the t value for a 95% confidence interval when the sample size is 20 is.
