Which,if Any,of the Following Statements About the Chi-Square Test of Independence

question 3

Multiple Choice

Which,if any,of the following statements about the chi-square test of independence is false?

• A)If r_i is the row total for row i and c_j is the column total for column j,then the estimated expected cell frequency corresponding to row i and column j equals (r_i)(c_j)/n.
• B)The test is valid if all of the estimated cell frequencies are at least five.
• C)The chi-square statistic is based on (r - 1)(c - 1)degrees of freedom,where r and c denote,respectively,the number of rows and columns in the contingency table.
• D)The alternative hypothesis states that the two classifications are statistically independent.
• E)All of these statements are true about the chi-square test of independence.

---

Definitions:

Cross-Sectional Studies

Studies that observe a population or a representative subset at one specific point in time.

Tertiary Prevention

Efforts to reduce the impact of an ongoing illness or injury that has lasting effects, through rehabilitation and treatment strategies.

Malaria Rehabilitation

The process of recovery and management of health after a malaria infection, focusing on improving patient outcomes and quality of life.

Blood Smear Test

A laboratory examination of a blood sample on a slide under a microscope to assess various blood disorders, including infections, anemia, and leukemia.