Inference for Two Proportions: Introduction

Inference for Two Proportions: Introduction — I discuss the sampling distribution of the difference in sample proportions, and the formulas for confidence intervals and hypothesis tests for the differenc…

Pre-teen prescription drug abuse rising in Lincoln County
Authorities have told News 4 that more people are abusing prescription drugs than heroin, LSD, inhalants, and cocaine combined. According to recent statistics, the number of drug overdoses per capita tripled in Missouri between 1999 and 2010. Only six …
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Thousands could qualify for clemency under new rules, but Obama faces blowback
Separate statistics indicate that about 8,800 prisoners serving time for crack cocaine offenses would have been eligible for shorter sentences had they been convicted after passage of the Fair Sentencing Act in 2010. Riggs said he does not know how …
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Ottawa high schools' police presence shows results
CBC News used the Municipal Freedom of Information and Protection Privacy Act to obtain an extract of the database that Ottawa police use to track service calls to the city's English public and Catholic high schools in 2013. These statistics reflect …
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