To Determine Whether There Appears to Be a Statistically Significant

question 22

Multiple Choice

To determine whether there appears to be a statistically significant relationship between exposure to pollution and risk of developing tumors he decides to conduct a χ² analysis. Based on the results of this analysis, which of the following is the most appropriate conclusion?

• A) Fish appear to be at a significantly higher risk of tumors in the polluted lake compared to the pristine lake (P < 0.05).
• B) Fish appear to be at a significantly higher risk of tumors in the polluted lake compared to the pristine lake (P > 0.05).
• C) Fish appear to be at a significantly lower risk of tumors in the polluted lake compared to the pristine lake (P < 0.05).
• D) These data do not provide sufficient evidence that the risk of tumors differs in polluted or pristine lakes (P < 0.05).