1. Explain when you use a chi-square test.
2. A report about an isolated community claims there are more newborn females than males, although we assume equal frequencies for each. Records indicate 96 boys and 12 girls born in the past month. Follow and list the eight steps for hypothesis testing to determine if there is a statistically significant difference.
3. For the observed frequencies in the table below, conduct a chi-square test to determir if there is a relationship between the variables. Follow and list all 8 steps for hypothesis testing. You can use SPSS to complete this one, or you can complete it by hand.
Sleep/exam outcomes Slept did not sleep
pass 40 20
did not pass 5 10