Question

The following table is the joint frequency table for Gender and Group membership. One of the...

The following table is the joint frequency table for Gender and Group membership. One of the researchers notes that 75% of the Critical Care group are male and wants to know if this is a statistically significant difference. Use this information to answer the question.

# of Patients

Male

Female

Critical Care

6

2

Healthy

48

39

Conduct the following hypothesis test

  • A chi-squared test for independence at the 95% confidence level
  • with Null Hypothesis that sex is independent of which group the patient is in
  • and with Alternate Hypothesis that sex is related to which group the patient is in
  • Calculate the test statistic, χtest2 , and the p-value of the test.
Math   Statistics-And-Probability   
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