 
									
								
									Thu Sep 18 - Wharton Statistics Department
									
... twins, where one of twins was schizophrenic and other was not. Comparing monozy. twins controls for genetic and socioeconomic differences. ...
                        	... twins, where one of twins was schizophrenic and other was not. Comparing monozy. twins controls for genetic and socioeconomic differences. ...
									Quiz 11
									
... As supervisor of Quality Control, you want to test your claim at the 5% significance level. You weigh 20 loaves and obtain a mean weight of 1.05 pounds. 1. Identify the population and parameter of interest. State your null and alternative hypotheses. ...
                        	... As supervisor of Quality Control, you want to test your claim at the 5% significance level. You weigh 20 loaves and obtain a mean weight of 1.05 pounds. 1. Identify the population and parameter of interest. State your null and alternative hypotheses. ...
									Section 11.1 Part 1 – Inference for the Mean of a Population
									
... The spread of the t distribution is a bit _______________________ that of the standard normal distribution. The t have ___________________________in the ___________________and ___________ in the __________________________ than does the standard normal. ...
                        	... The spread of the t distribution is a bit _______________________ that of the standard normal distribution. The t have ___________________________in the ___________________and ___________ in the __________________________ than does the standard normal. ...
									Non-Parametric Statistics
									
... What is different about NonParametric Statistics?  Sometimes statisticians use what is called “ordinal” data. This data is obtained by taking the raw data and giving each sample a rank. These ranks are then used to create test statistics.  In parametric statistics, one deals with the median rather ...
                        	... What is different about NonParametric Statistics?  Sometimes statisticians use what is called “ordinal” data. This data is obtained by taking the raw data and giving each sample a rank. These ranks are then used to create test statistics.  In parametric statistics, one deals with the median rather ...
									Sample Location Problems
									
... Roundabouts (or traffic circles) are supposed to increase traffic flow. To determine if they do, n1 + n2 drivers are recruited to participate in a hypothetical double-blind study. The drivers are randomly assigned to a group of n1 drivers who drive from a location, A, to another location ,B, via a r ...
                        	... Roundabouts (or traffic circles) are supposed to increase traffic flow. To determine if they do, n1 + n2 drivers are recruited to participate in a hypothetical double-blind study. The drivers are randomly assigned to a group of n1 drivers who drive from a location, A, to another location ,B, via a r ...
									CHAPTER 8 1. Probability Density Functions For some types of data
									
... 3.2. Mean. To understand the formula for the mean, let’s return to the age density function, p(x). If we want to find the average age of people in the US, intuitively we should add together the ages of everyone in the US and divide by the total number of people living in the US. This, of course, is ...
                        	... 3.2. Mean. To understand the formula for the mean, let’s return to the age density function, p(x). If we want to find the average age of people in the US, intuitively we should add together the ages of everyone in the US and divide by the total number of people living in the US. This, of course, is ...
 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									 
									