which of the following statements about good experiments is true

Why is replication important to consider when designing experiment?

A) replication provides the baseline condition for the independent (treatment) variables

B) replication increases the chances that your results apply only into an experiment

C) replication is necessary to introduce systematic variation into an experiment

D) replication reduces the chances that a rare result leads you to an erroneous conclusion

Some college campuses have started using "puppy therapy" to help reduce stress among students according to a USA Today article. Suppose you design an experiment to test the hypothesis that puppy therapy is an effective stress reducer for students, within the context of a 6-section introductory biology course at your school. Each section has 12 students. Students in three of the sections get to play together with a pack of therapy dogs for 15 minutes at the beginning of the section recitation (or "lab") meeting. The other three sections simply observe 15 minutes of quiet free time instead. Students rate their stress levels immediately after the 15-minute period. Then you measure the percentage of students that report being 'very stressed out" for each section, and you compare the average percentage between sections that played with puppies and those that didn't.

In your puppy therapy experiment, what is the experimental unit?

a. A single student

b. A section in the course

c. The entire course

Some college campuses have started using "puppy therapy" to help reduce stress among students according to a USA Today article. Suppose you design an experiment to test the hypothesis that puppy therapy is an effective stress reducer for students, within the context of a 6-section introductory biology course at your school. Each section has 12 students. Students in three of the sections get to play together with a pack of therapy dogs for 15 minutes at the beginning of the section recitation (or "lab") meeting. The other three sections simply observe 15 minutes of quiet free time instead. Students rate their stress levels immediately after the 15-minute period. Then you measure the percentage of students that report being 'very stressed out" for each section, and you compare the average percentage between sections that played with puppies and those that didn't.

In your puppy therapy experiment, how many replicates are in the experimental group?

What is replication in an experiment? Why is replication important?

Which of the following statements is NOT true about good communication?

A. Good communication makes it difficult to express wants and needs.

B. Good communication helps prevent misunderstandings.

C. Good communication allows for expression.

D. Good communication builds healthy relationships

Which of the following statements best describes the purpose of performing experiments?

A. Experiments are designed to produce unexplainable results.

B. Experiments attempt to produce other observations that support or refute a theory or hypothesis.

C. None of the answers are correct.

D. Experiments can be replaced by logical reasoning based on known facts.

E. Experiments are designed to produce the results predicted by a theory or hypothesis.

Which of the following statements are correct? Choose all that apply.

a.

$$\lim _{x \rightarrow 1^{+}} \frac{1}{1-x}$$

does not exist.

b.

$$\lim _{x \rightarrow 1^{+}} \frac{1}{1-x}=\infty.$$

c.

$$\lim _{x \rightarrow 1^{+}} \frac{1}{1-x}=-\infty.$$

A company is growing algae in big tanks to make fish food. However, the algae are not growing very quickly, and they suspect either phosphorus, nitrogen, or iron is limiting. What could the company do to figure out which nutrient is limiting?

a. Add phosphorus to one tank, nitrogen to another, and iron to a third, and see which treatment increases algal growth.

b. Add phosphorus, iron, and nitrogen to all tanks, and see which nutrient increases algal growth.

c. Add phosphorus to all tanks, because phosphorus is the nutrient that limits algal growth.

d. Add nitrogen to all tanks, because nitrogen is the nutrient that limits algal growth.

which of the following statements about anabolic pathways is true?

Which of the following statements is NOT true regarding​ forecasting?

A. Forecasting is the art and science of predicting future events.
B. Forecasting is exclusively an objective prediction.
C. Forecasting may involve taking historical data and projecting them into the future with a mathematical model.
D. A forecast is usually classified by the future time horizon that it covers.

Which of the following statements about a work package is true?

a. It requires the work of the entire project team.

b. It is the responsibility of the project manager.

c. It is the lowest level of the WBS.

d. It consists of a single activity.

Which of the following are binomial experiments or can be reduced to binomial experiments?
Asking $1000$ people which brand of cigarettes they smoke

All of the following statements are true regarding gender EXCEPT:

A. Gender and gender identity are always congruent

B. Gender is learned

C. Gender is socially constructed

D. Gender is distinct from sex