Asked by Bianca Brown on Jun 02, 2024

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Dr.Zelke surveys 50 university students to discover the relationship between textbook price and ratings of readability.Dr.Zelke finds that for these two variables,the correlation coefficient is -0.70.What does this indicate

A)  More expensive books tend to receive lower readability ratings than less expensive books. 
B)  Increasing the price of a book will lead people to think that it is more readable. 
C)  Less expensive books tend to receive lower readability ratings than more expensive books. 
D)  There is no relationship between book price and ratings of readability.

Correlation Coefficient

A statistical measure that quantifies the degree of relationship or association between two variables, ranging from -1 to 1.

Textbook Price

The financial cost of educational books required for academic studies, often noted for being high and a point of contention among students.

Readability Ratings

Measures or scores that indicate how easy or difficult a text is to read and understand, often based on factors like vocabulary and sentence complexity.

  • Absorb the concept of correlation and comprehend its importance within experimental and observational research frameworks.
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CW
Courtney WalkerJun 06, 2024
Final Answer :
A
Explanation :
The negative correlation coefficient (-0.70) indicates an inverse relationship between the two variables, which means that as the price of the textbook increases, the ratings of readability tend to decrease. Therefore, option A is the best choice.