Skip to main content
Pearson+ LogoPearson+ Logo
Ch. 1 - Can Science Cure the Common Cold?
Belk, Maier - Biology: Science for Life 6th Edition
Belk, Maier6th EditionBiology: Science for LifeISBN: 9780135214084Not the one you use?Change textbook
Chapter 1, Problem 9

A relationship between two factors, for instance, between outside temperature and the number of people with active colds in a population, is known as a(n) ________.
a. Significant result
b. Correlation
c. Hypothesis
d. Alternative hypothesis
e. Experimental test

Verified step by step guidance
1
Step 1: Understand the problem by identifying the key terms. The question is asking about the type of relationship between two factors, such as outside temperature and the number of people with active colds in a population.
Step 2: Review the definitions of the options provided: - Significant result: A statistical term indicating that the observed data is unlikely to have occurred by chance. - Correlation: A statistical relationship between two variables, where changes in one variable are associated with changes in another. - Hypothesis: A proposed explanation for a phenomenon, which can be tested through experimentation. - Alternative hypothesis: A statement that suggests there is a relationship or effect, often contrasted with the null hypothesis. - Experimental test: A procedure carried out to test a hypothesis under controlled conditions.
Step 3: Analyze the context of the problem. The relationship described does not involve testing or proposing an explanation (hypothesis or experimental test). It is simply describing an association between two factors, which aligns with the definition of correlation.
Step 4: Eliminate incorrect options based on the definitions and context. Significant result, hypothesis, alternative hypothesis, and experimental test do not fit the description of a relationship between two factors.
Step 5: Conclude that the correct term for describing a relationship between two factors, such as outside temperature and the number of people with active colds, is 'correlation'.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
46s
Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Correlation

Correlation refers to a statistical relationship between two variables, indicating how one may change in relation to the other. In the context of the question, it describes the connection between outside temperature and the incidence of colds, suggesting that as one factor changes, the other may also vary. Correlation does not imply causation; it merely highlights a pattern or trend.
Recommended video:
Guided course
06:05
Introduction to the Cytoskeleton

Significant Result

A significant result in research indicates that the findings are unlikely to have occurred by chance, often determined through statistical tests. This concept is crucial for validating hypotheses and establishing reliable conclusions in scientific studies. In the context of the question, it contrasts with correlation, as it focuses on the strength and reliability of the observed relationship.
Recommended video:
Guided course
03:26
Character Displacement

Hypothesis

A hypothesis is a testable statement or prediction about the relationship between two or more variables. It serves as a foundation for scientific investigation, guiding the research process. In the context of the question, understanding the difference between a hypothesis and correlation is essential, as a hypothesis proposes a potential explanation that can be tested, while correlation simply describes an observed relationship.
Recommended video:
Guided course
08:22
Predictions, Hypotheses, & Theories
Related Practice
Textbook Question

If I perform a hypothesis test in which I demonstrate that the prediction I made in question 5 is true, I have ________.

a. Proved the hypothesis

b. Supported the hypothesis

c. Not falsified the hypothesis

d. B and C are correct

e. A, B, and C are correct

1623
views
Textbook Question

Control subjects in an experiment _________.

a. Should be similar in most ways to the experimental subjects.

b. Should not know whether they are in the control or experimental group.

c. Should have essentially the same interactions with the researchers as the experimental subjects.

d. Help eliminate alternative hypotheses that could explain experimental results.

e. All of the above.

1632
views
Textbook Question

An experiment in which neither the participants in the experiment nor the technicians collecting the data know which individuals are in the experimental group and which ones are in the control group is known as _________.

a. Controlled

b. Biased

c. Double-blind

d. Falsifiable

e. Unpredictable

1117
views
Textbook Question

A primary source of scientific results is ________.

a. The news media.

b. Anecdotes from others.

c. Articles in peer-reviewed journals.

d. The Internet.

e. All of the above.

889
views
Textbook Question

A story on your local news station reports that eating a 1-ounce square of milk chocolate each day reduces the risk of heart disease in rats and that this result is statistically significant. This means that ________.

a. People who eat milk chocolate are healthier than those who do not.

b. The difference between chocolate-eating and chocolate-abstaining rats in heart disease rates was greater than expected by chance.

c. Rats like milk chocolate.

d. Milk chocolate reduces the risk of heart disease.

e. Two ounces of milk chocolate per day is likely to be even better for heart health than 1 ounce.

825
views
Textbook Question

What features of the story on milk chocolate and heart health described in question 11 should cause you to consider the results less convincing?

a. The study was sponsored by a large milk chocolate manufacturer.

b. A total of 10 rats were used in the study.

c. The only difference between the rats was that human participants of the experimental group received chocolate along with their regular diets, and the human participants of the control group received no additional food.

d. The reporter notes that other studies indicate milk chocolate does not have a beneficial effect on heart health.

e. All of the above.

1006
views