12.1
... There is a different tdistribution for each sample size We specify a particular t distribution by giving its degrees of freedom = n-1. Notation: t(k) = tdistribution with k degrees of freedom. ...
... There is a different tdistribution for each sample size We specify a particular t distribution by giving its degrees of freedom = n-1. Notation: t(k) = tdistribution with k degrees of freedom. ...
10.2a Comparing Two Means
... observations in each sample or group are independent. When sampling without replacement, check that the two populations are at least 10 times as large as the corresponding samples (the 10% condition). ...
... observations in each sample or group are independent. When sampling without replacement, check that the two populations are at least 10 times as large as the corresponding samples (the 10% condition). ...
STAT 366 Spring 10 Quiz 7 Open Note(you make work together, you
... then run on a test course under identical driving conditions until they had only one half of a gallon of gas remaining (indicated by a sensor in the gas tank), at which time they recorded the mileage. The cars then had their gas tanks drained and refilled with 10 gallons of gas which contained one c ...
... then run on a test course under identical driving conditions until they had only one half of a gallon of gas remaining (indicated by a sensor in the gas tank), at which time they recorded the mileage. The cars then had their gas tanks drained and refilled with 10 gallons of gas which contained one c ...
Thu Jan 29 - Wharton Statistics
... • Test statistic: t (Y1 Y2 ) * . Values of t that are farther SE (Y1 Y2 ) ...
... • Test statistic: t (Y1 Y2 ) * . Values of t that are farther SE (Y1 Y2 ) ...
AP Statistics: Section 10.1 A
... proportion of college undergraduates have engaged in binge drinking? It certainly would not be feasible to test every laptop or question every college undergraduate. Instead we choose a sample from the population of interest and collect data from these subjects. Our goal is to use the sample statist ...
... proportion of college undergraduates have engaged in binge drinking? It certainly would not be feasible to test every laptop or question every college undergraduate. Instead we choose a sample from the population of interest and collect data from these subjects. Our goal is to use the sample statist ...
Hypothesis Testing
... • Under the independence assumption, we conclude that there is no difference in the means ...
... • Under the independence assumption, we conclude that there is no difference in the means ...
F13_lect8_ch14svFINAL
... Reject or don’t reject H0 (Are significance tests really that much better?) The Great: It estimates a range of likely values for the true population mean µ. A P-value quantifies how strong the evidence is against the H0, but doesn’t provide any information about the true population mean µ. ...
... Reject or don’t reject H0 (Are significance tests really that much better?) The Great: It estimates a range of likely values for the true population mean µ. A P-value quantifies how strong the evidence is against the H0, but doesn’t provide any information about the true population mean µ. ...
