Respuesta :

Think:  0.99x = 194 implies that x, the sample size, was 196.

The test was incorrect 2 times.  Look at "2" in the table and determine for yourself why.

Part C:  2/196 = 0.01  =>  1%
This makes sense, since 99% of the time the test is correct.

1% + 99% = 100%