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Section B.7 Inference for Means

Risso’s dolphins
Endo T and Haraguchi K. 2009. High mercury levels in hair samples from residents of Taiji, a Japanese whaling town. Marine Pollution Bulletin 60(5):743-747.
Taiji was featured in the movie The Cove, and it is a significant source of dolphin and whale meat in Japan. Thousands of dolphins pass through the Taiji area annually, and we assume these 19 dolphins reasonably represent a simple random sample from those dolphins.
Croaker white fish
run17
textbooks, ucla_textbooks_f18
Data were collected by OpenIntro staff in 2010 and again in 2018. For the 2018 sample, we sampled 201 UCLA courses. Of those, 68 required books that could be found on Amazon.
stem_cells
Menard C, et al. 2005. Transplantation of cardiac-committed mouse embryonic stem cells to infarcted sheep myocardium: a preclinical study. The Lancet: 366:9490, p1005-1012.
ncbirths
Birth records released by North Carolina in 2004. Unfortunately, we don’t currently have additional information on the source for this data set.
Exam versions
This example was made up.
Blood pressure statistics
The blood pressure standard deviation for patients with blood pressure ranging from 140 to 180 mmHg is guessed and may be a little (but likely not dramatically) imprecise from what we’d observe in actual data.
toy_anova
Data used for toy ANOVA example, where this data was made up.
mlb_players_18
Data were retrieved from mlb.mlb.com/stats. Only players with at least 100 at bats were considered during the analysis.
classdata
This example was made up.
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