Find the null and alternative hypthoses, Type I and II Error, and determine whether the alternative hypothesis is directional and non-directional

Question

You read an article online that suggests that the number of negative of negative tweets posted online about the TV show Game of Thrones significantly increased during the 2019 season, as compared to the previous season. You decided to test this hypothesis

Answer 1

The null hypothesis is that the number of negative of negative tweets posted online about the TV show Game of Thrones did not change during the 2019 season, as compared to the previous season.

The alternative (experimental) hypothesis is tha tthe number of negative of negative tweets posted online about the TV show Game of Thrones significantly increased during the 2019 season, as compared to the previous season. This is a directional hypothesis because it predicts an increase, as opposed to just predicting a change (increase OR decrease).

A type 1 error would be rejecting the null when it should be accepted and a type 2 error would be accepting the null when it should be rejected.