The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?

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#Question id: 16879

#Section 3: Mathematics and Quantitative Ecology

Suppose a 95% confidence interval for the proportion of Americans who exercise regularly is 0.29 to 0.37. Which one of the following statements is FALSE?

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#Question id: 16880

#Section 3: Mathematics and Quantitative Ecology

In hypothesis testing, a Type 2 error occurs when

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#Question id: 16881

#Section 3: Mathematics and Quantitative Ecology

Null and alternative hypotheses are statements about:

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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?

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#Question id: 16883

#Section 3: Mathematics and Quantitative Ecology

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

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#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