Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 14345
TLS Online TPP Program

#Question id: 11978

Which of the following statements about the ocean pelagic biome is true?

#Section 1: Ecology
  1. The ocean is a vast, deep storehouse that always provides sustenance; it is the next frontier for feeding humanity.
  2. Because it is so immense, the ocean is a uniform environment.
  3. More photosynthesis occurs in the ocean than in any other biome.
  4. Pelagic ocean photosynthetic activity is disproportionately low in relation to the size of the biome

More Questions
TLS Online TPP Program

#Question id: 16880

#Section 3: Mathematics and Quantitative Ecology

In hypothesis testing, a Type 2 error occurs when
TLS Online TPP Program

#Question id: 16881

#Section 3: Mathematics and Quantitative Ecology

Null and alternative hypotheses are statements about:
TLS Online TPP Program

#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.