I feel like I'm typing this in correctly into my ti84 but my answers come out different than what the program says. I don't get it. I've even checked it with online calculators to double check (since...

I feel like I'm typing this in correctly into my ti84 but my answers come out different than what the program says. I don't get it. I've even checked it with online calculators to double check (since I'm using an app). The answers match. Is there a setting or something I'm not doing right?

Test the claim that the proportion of people who own cats is significantly different than 30% at the 0.05 significance level.


The null and alternative hypothesis would be:

The test is:

Based on a sample of 600 people, 21% owned cats


The test statistic is:  (to 2 decimals)


The p-value is:  (to 2 decimals)