Use attached Table A2 for Normal Distribution to find the cr

Use attached Table A-2 for Normal Distribution to find the critical z value for Right-Tailed test with significance level = 0.10.

Solution

Follow the steps:

1. Subtract alpha from 0.05 (given, right tailed test). 0.5-0.15=0.35.

2. In the z table find z score corresponding to 0.35. It is 1.04 (Look at area mean and z).