Final answer:
The p-value for a z-test with a test statistic of z=1.23 in a one-tailed test is the area to the right of the z-value in the standard normal distribution, which is roughly less than 0.1, but we need software or a calculator to find the exact value.
Step-by-step explanation:
To find the p-value for the test statistic z=1.23 in a one-tailed z-test, we look up the area to the right of z=1.23 in the standard normal distribution. This area represents the probability of obtaining a test statistic as extreme as, or more extreme than, the one observed if the null hypothesis H0: p=0.35 is true. Since we are not provided with a z-table in the question, we can use software or a calculator to determine the precise p-value. However, based on the provided information, which references areas to the right of other z-values, we can roughly estimate that since z=1.23 is less than the mentioned z=3.32, our p-value will be greater than 0.0103. We cannot directly compute it from the given information but typically, a z-value of 1.23 corresponds to a p-value slightly less than 0.1.