Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
In chi-squared test for goodness of fit; how do we calculate the expected frequency...?
Number of mistakes per day: 0, 1, 2, 3, 4, 5, 6
The observed frequencies (Oi) are : 143, 90, 42, 12, 9, 3 and 1
and the expected frequencies (Ei) are given as: 123.2, 109.6, 48.8, 14.5, 3.2, 0.6 and 0.1
Would you be kind enough to tell me how Ei are being computed?
Significane level = 0.05
1 Answer
- Anonymous1 decade agoFavorite Answer
Generally for expected frequencies for mistakes, the Poisson distribution is used. The mean is calculated by the observed frequency, and then probabilities are calculated using Poisson distribution, finally multiplying the probabilities with total frequency you get the Expected frequency.