Are people equally likely to be born on any day of the seven days of the week? Or are some days more likely to be a person's birthday than other days? To investigate this question, days of birth were recorded for the 147 "noted writers of the present" listed in The World Almanac and Book of Facts 2000. The counts for the seven days of the week are given in the following table.
-Are validity conditions met to conduct a theory-based chi-square goodness-of-fit test?

Question

Are people equally likely to be born on any day of the seven days of the week? Or are some days more likely to be a person's birthday than other days? To investigate this question, days of birth were recorded for the 147 "noted writers of the present" listed in The World Almanac and Book of Facts 2000. The counts for the seven days of the week are given in the following table. 
-Are validity conditions met to conduct a theory-based chi-square goodness-of-fit test?

Quizplus · Accepted Answer

The validity condition for a chi-square goodness-of-fit test is that all expected counts should be at least 5, and having all observed counts at least 10 suggests that this condition is likely met.

Are People Equally Likely to Be Born on Any Day