Reference no: EM132845280

Students are asked to rate their preference for one of four video games. The following table lists the observed preferences in a sample of 120 students. State whether to retain or reject the null hypothesis for a chi-square goodness-of-fit test given the following expected frequencies. (Assume alpha equal to 0.05.) Video GamesMcStatsTic-Tac

StatsSilly
StatsSuper
StatsFrequency
observed 30303030

(a) expected frequencies: 25%, 25%, 25%, 25%, respectively

Retain the null hypothesis.

Reject the null hypothesis.

(b) expected frequencies: 70%, 10%, 10%, 10%, respectively

Retain the null hypothesis.

Reject the null hypothesis.