There are a couple of short cuts...
1. Create a table 2 columns. Column 1 = nominal and has a 0 and 1. Column 2 = continuous and contains your counts of 0s and 1s (25 and 75 for your example). Then use distribution with column 1 = Y and column 2 = Freq. From the distribution red triangle window you can then get CI and run tests of probabilities.
2. Go to Help>Sample Data and then in the teaching resources (bottom right side) under the calculators is an option for hypothesis tests for one proportion. You can use summary data in that calculator to run your tests.