7. In 1861, 10 essays appeared in the New Orleans Daily Crescent. They were signed "Quintus Curtius Snodgrass” and some
Posted: Mon Nov 15, 2021 10:45 am
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7. In 1861, 10 essays appeared in the New Orleans Daily Crescent. They were signed "Quintus Curtius Snodgrass” and some people suspected they were actually written by Mark Twain. To investigate this, we will consider the proportion of three letter words found in an author's work. From eight Twain essays we have: .225 .262.217 .240 .230 .229.235 .217 From 10 Snodgrass essays we have: .209.205.196 .210 .202 .207.224 .223 .220 .201 (a) Perform a Wald test for equality of the means. Use the nonparamet- ric plug-in estimator. Report the p-value and a 95 per cent confidence interval for the difference of means. What do you conclude? (b) Now use a permutation test to avoid the use of large sample methods. What is your conclusion? (Brinegar (1963)).