PPT-Hypothesis

Testing Two siblings Arlen and an Robin agree to resolve their disputed ownership of an Erte painting by tossing a penny Arlen produces a penny and just as Robin is about to toss . Hypothesis. testing. The process of making judgments about a large group (population) on the basis of a small subset of that group (sample) is known as statistical inference.. Hypothesis testing, one of two fields in statistical inference, allows us to objectively assess the probability that statements about a population are 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. Statistics. Terms. Null hypothesis. – The claim being assessed in a hypothesis test is called the null hypothesis. . Usually, the null hypothesis is a statement of “no change from the traditional value,” “no effect,” “no difference,” or “no relationship.” . 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. How does a hypothesis begin?. What do you do with it?. How do you make one?. How does a hypothesis begin?. Scientists make lots of observations. This leads them to form scientific questions about what they have observed. Each scientist creates an explanation – or hypothesis – that he or she thinks will answer the question.. Ellen, . M. egan, Dan. Riemann Hypothesis. The nontrivial Riemann zeta function zeros, that is, the values of s other than -2,-4,-6….. . s. uch that . δ. (s)=0 all lie on the critical line . Θ. = R[s] = ½ (with real part ½). Definitions. 1. Hypothesis. : . A tentative statement such as ‘if A happens then B must happen’ that can be tested . by direct . experiment or observation. A proven hypothesis can be expressed as a law or a theory. . How does a hypothesis begin?. What do you do with it?. How do you make one?. How does a hypothesis begin?. Scientists make lots of observations. This leads them to form scientific questions about what they have observed. Each scientist creates an explanation – or hypothesis – that he or she thinks will answer the question.. The Hypothetico-Deductive Model of Scientific Research. 11. Prediction. 10. Theory (Consists of confirmed hypotheses). 9. Confirmed?. 6. Test Hypothesis. 5. Data Analysis. 4. Systematic Observation . Program Director. Functions of Behavior. There are four functions of behavior that have been found through research.. Attention, Escape, Automatic, and Access to Tangibles. Iwata created a Functional Analysis as a way to assess functions of behaviors. The difference between a sample and a population. Null and research hypotheses. What is a good hypothesis. This week. 2. Hypothesis. An educated guess. Research questions .  hypothesis. A good hypothesis translates a problem or research question into a form that is more amendable to testing. 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… . Sample. , shape, location, and spread. Sample = make sure it's random, handle missing data (mcar, mar, nmar), imputation . methods. NMAR!. . Shape = Is the data skewed, normal, or flat? If normal then we can use statistical analysis for normal .