A hospital administrator claims that emergency room (ER) visits occur equally across all days of the week. To test this, a random sample of $840$ ER visits from the past month is analyzed. The number of visits per day is recorded below:

Test the administrator’s claim at the $\alpha =0.05$ significance level.

Reject the null hypothesis; ER visits are significantly higher on weekends.

Accept the alternative hypothesis; ER visits are not equally distributed.

Reject the null hypothesis because the chi-square statistic is greater than the critical value.

Fail to reject the null hypothesis; there is insufficient evidence to say ER visits vary by day.