PPT-READ: p. 461 - 463 "A trial as a Hypothesis Test"

PValues What to do with an Innocent Defendent Ho p innocent Ha p gt guilty If we reject Ho we have SUFFICIENT evidence for Ha If we do not reject Ho we DO NOT have sufficient evidence for Ha Does this mean Ho is true. . Testing. Martina Litschmannová. m. artina.litschmannova. @vsb.cz. K210. Terms Introduce in Prior Chapter. Population. . …. . all possible values. Sample. . …. a portion of the population. Ask a Question. How many cycles do you think a pendulum will make in 15 seconds?. Cycle = swing away from you and back. Pendulum = mass hanging from a fixed point that is free to swinger to and fro. Form a Hypothesis. Note:. In Chapter 8 we used methods of estimating the value of a parameter.. In this chapter, we are drawing inferences about the parameter by making decisions concerning the value of the parameter. Two Hypothesis:. STAT 250. Dr. Kari Lock Morgan. SECTION 4.3. Significance level (4.3). Statistical conclusions (4.3). p-value and H. 0. If the p-value is small, then a statistic as extreme as that observed would be unlikely if the null hypothesis were true, providing significant evidence against H. +. Probability. Seminar 6. A difficult mock question for mid-term. Plot . the following graph. People . who use Facebook only (but not Twitter) are generally happier than those who use Twitter only (but not Facebook). This . Hypothesis Testing. Test of hypothesis - Test whether a population parameter is less than, equal to, or greater than a specified value.. Remember an inference without a measure of reliability is little more than a guess.. Excel. GrowingKnowing.com © 2011. 1. GrowingKnowing.com © 2011. There are 5 steps. Step 1: State the null and alternative hypothesis. Step 2: Select a confidence level. Step 3: Determine the decision rule. Ho - this hypothesis holds that if the data deviate from the norm in any way, that deviation is due strictly to chance.. Alternative hypothesis. Ha - the data show something important.. Doing decision = accept/reject Ho (the decision centers around null hypothesis). Introduction. Researchers interesting in many types of questions. Earth warming. Medication effect on blood pressure. Seat belts and accidents. Are differences in means of populations and means of samples real, or by chance?. Test of hypothesis - Test whether a population parameter is less than, equal to, or greater than a specified value.. Remember an inference without a measure of reliability is little more than a guess.. nd. type of formal statistical inference. Our goal is to assess the evidence provided by data from a sample about some claim concerning the population.. Remember: We are asking ourselves “What would happen if we repeated the sample or the experiment many times?”. 5th - 9th December 2011, Rome. A hypothesis. Is the prevalence within each food consumption group significantly different between male-headed and female-headed households?. Both variables are categorical… . Type I & II Error and Test of 1 &2 Tailed Hypothesis Khagendra Kumar Dept. of Education Patna University Decision Making on Accepting & Rejecting Hypotheses  To take decision for accepting or m. artina.litschmannova. @vsb.cz. EA 538. Terms Introduce in Prior Chapter. Population. . …. . all possible values. Sample. . …. a portion of the population. . Statistical inference . …. .