Chap08 - Home - KSU Faculty Member websites
... Stratified Random Sampling Stratified Random Sampling: A population is first divided into subgroups, called strata, and a sample is selected from each stratum. Useful when a population can be clearly divided in groups based on some characteristics Suppose we want to study the advertising expenditur ...
... Stratified Random Sampling Stratified Random Sampling: A population is first divided into subgroups, called strata, and a sample is selected from each stratum. Useful when a population can be clearly divided in groups based on some characteristics Suppose we want to study the advertising expenditur ...
Summer Research Opportunities Program Statistics Boot Camp
... Some processes may have more measurement error than others Too expensive Unrealistic to survey all of the population Too time-consuming ...
... Some processes may have more measurement error than others Too expensive Unrealistic to survey all of the population Too time-consuming ...
Section 8-R
... • Determine the sample size necessary to construct a confidence interval for a fixed margin of error • Compare and contrast the t distribution and the Normal distribution • List the conditions that must be present to construct a confidence interval for a population mean or a population proportion • ...
... • Determine the sample size necessary to construct a confidence interval for a fixed margin of error • Compare and contrast the t distribution and the Normal distribution • List the conditions that must be present to construct a confidence interval for a population mean or a population proportion • ...
252y0552 - On-line Web Courses
... Exhibit T1: According to a 1992 survey, 45% of the American population would support higher taxes to pay for health insurance. A state government is considering offering a health insurance plan and took a survey of 400 residents and found that 50% would support higher taxes. Use this result to test ...
... Exhibit T1: According to a 1992 survey, 45% of the American population would support higher taxes to pay for health insurance. A state government is considering offering a health insurance plan and took a survey of 400 residents and found that 50% would support higher taxes. Use this result to test ...
pptx
... Old code, new code: is JFI larger ? Gap ? Gini’s index is also used; Def: 2 x area between diagonal and Lorenz curve More or less equivalent to Lorenz curve gap ...
... Old code, new code: is JFI larger ? Gap ? Gini’s index is also used; Def: 2 x area between diagonal and Lorenz curve More or less equivalent to Lorenz curve gap ...
ANOVAs01
... Multiple Comparisons Once ANOVA indicates that the groups do not all have the same means, we can compare them two by two using the 2-sample t test • We need to adjust our p-value threshold because we are doing multiple tests with the same data. •There are several methods for doing this. • If we rea ...
... Multiple Comparisons Once ANOVA indicates that the groups do not all have the same means, we can compare them two by two using the 2-sample t test • We need to adjust our p-value threshold because we are doing multiple tests with the same data. •There are several methods for doing this. • If we rea ...
A NOTE ON THE RELATIONS OF CERTAIN PARAMETERS
... total catches of each of given groups of animals (defined by species, age and sex) calculated from laboratory samples, which represented numbers caught by nets hauled consecutively,and therefore effectivelythrough the same body of water. The subsequent analysis of variance divided the total variance ...
... total catches of each of given groups of animals (defined by species, age and sex) calculated from laboratory samples, which represented numbers caught by nets hauled consecutively,and therefore effectivelythrough the same body of water. The subsequent analysis of variance divided the total variance ...
Core Examples
... f. Assuming the standard deviation would not change, what would the mean μ need to be if you wanted to be able to service 99% of your customers in less than 6 minutes? 2. Sampling Distribution of Sample Mean: Given a random variable X (time to receive service at BurgerLand) with mean μ = 5 minutes a ...
... f. Assuming the standard deviation would not change, what would the mean μ need to be if you wanted to be able to service 99% of your customers in less than 6 minutes? 2. Sampling Distribution of Sample Mean: Given a random variable X (time to receive service at BurgerLand) with mean μ = 5 minutes a ...
