STAT 2507 Study Guide - Final Guide: Interval Estimation, Null Hypothesis, Standard Deviation
17 Jan 2015
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Jessica has to be at school at 8:00 am. Given that p (x < 2. 1) = . 025, what is the value of : 2. 394, random samples of size 36 each are taken from a large population whose mean is 120 and standard deviation is 39. Had the sample size been 160 instead of 40, the ci would have been. 17. 25 9. 68: a 95% ci for the population proportion of professional tennis players who earn more than. millions a year is found to be between . 82 and . 88. 10 in testing the hypothesis h0 : = 75 vs ha : 6= 75, the following information is known: n = 64 x = 78, and s = 10. The upper limit of a two-sided 95% ci for the true mean would be: 77. 769, based on sample data, the 90% ci limits for were 170. 86 and 195. 42. Long answer questions: show all your work; otherwise only partial marks will be awarded.
