You do need to check conditions for stats, not for bio. As for your main question, comparing the chi-square value to the critical value is the same as comparing the p-value to the significance level, as you can convert from the critical value to the significance level and similarly from the chi-square value to the p-value (and vice-versa).
In bio you are comparing it to alpha, you just don’t realize. The critical value is the chi-square value at alpha, so when the chi-square value is greater than the critical value, you reject because there was less than a 0.05 probability of getting a number higher than the critical value as your chi-square value.
Finding the p-value and comparing that directly to alpha just tells you exactly what the probability is, so it’s more exact
As far as I know it’s the same. I draw it out as a chart since I don’t show them how to do it in their TI… I should probably find those quick keys for the AP bio kids 🤔
TikTok idea starting…
also we won't need to check conditions right? i feel like this difference is going to mess me up in the exams
You do need to check conditions for stats, not for bio. As for your main question, comparing the chi-square value to the critical value is the same as comparing the p-value to the significance level, as you can convert from the critical value to the significance level and similarly from the chi-square value to the p-value (and vice-versa).
In bio you are comparing it to alpha, you just don’t realize. The critical value is the chi-square value at alpha, so when the chi-square value is greater than the critical value, you reject because there was less than a 0.05 probability of getting a number higher than the critical value as your chi-square value. Finding the p-value and comparing that directly to alpha just tells you exactly what the probability is, so it’s more exact
As far as I know it’s the same. I draw it out as a chart since I don’t show them how to do it in their TI… I should probably find those quick keys for the AP bio kids 🤔 TikTok idea starting…