A study was done to look at the association between the pres…
A study was done to look at the association between the presence of plantar fasciitis (PF) and weight (rated underweight, normal, overweight based on BMI) in 100 athletes. This created a 2 x 3 contingency table, with results shown in the table below. Numbers in red are expected frequencies [Standardized Residual]. The results showed that
Read DetailsA researcher tested the involvement of the FAAT gene in obes…
A researcher tested the involvement of the FAAT gene in obesity by measuring plasma triglyceride concentrations in wildtype and FAAT knockout (FAAT −/−) mice fed either a normal or high-fat diet for 6 weeks (n = 7 per group). The results are illustrated below and the output of a two-way analysis of variance test (2-way ANOVA) is reproduced below. Source of variation df SS MS F P Genotype 1 17550 17550 48.00
Read DetailsDeep outer space, far from any solar systems or stars, is ex…
Deep outer space, far from any solar systems or stars, is extremely cold at a temperature of about -455°F (2.59 K). Although we think of outer space as being “empty”, there are approximately 1,000,000 atoms/m3in these regions of “empty” space. What is the pressure due to the gas in these regions? Compare this mathematically to atmospheric pressure here on Earth.
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