Carolus Linnaeus (1707–1778), who established the framework of modern taxonomy in his Systema Naturae (1735), won worldwide fame for his exhaustive classification of plants and animals, undertaken in the hope of discovering the pattern of the creation. Linnaeus classified,

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#Question id: 16882

#Section 3: Mathematics and Quantitative Ecology

A hypothesis test is done in which the alternative hypothesis is that more than 10% of a population is left-handed. The p-value for the test is calculated to be 0.25. Which statement is correct?

TLS Online TPP Program

#Question id: 16883

#Section 3: Mathematics and Quantitative Ecology

Which of the following is NOT true about the standard error of a statistic?

TLS Online TPP Program

#Question id: 16884

#Section 3: Mathematics and Quantitative Ecology

A prospective observational study on the relationship between sleep deprivation and heart disease was done by Ayas, et. al. (Arch Intern Med 2003). Women who slept at most 5 hours a night were compared to women who slept for 8 hours a night (reference group). After adjusting for potential confounding variables like smoking, a 95% confidence interval for the relative risk of heart disease was (1.10, 1.92). Based on this confidence interval, a consistent conclusion would be

TLS Online TPP Program

#Question id: 16885

#Section 3: Mathematics and Quantitative Ecology

Consider a random sample of 100 females and 100 males. Suppose 15 of the females are left-handed and 12 of the males are left-handed. What is the estimated difference between population proportions of females and males who are left-handed (females − males)? Select the choice with the correct notation and numerical value.

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#Question id: 16886

#Section 3: Mathematics and Quantitative Ecology

A result is called “statistically significant” whenever

TLS Online TPP Program

#Question id: 16887

#Section 3: Mathematics and Quantitative Ecology

The confidence level for a confidence interval for a mean is