1. π H₀: μ = 0, Hₐ: μ > 0 π. We find π Z = 1.45 π. Calculate the π P π-value.
2. With π n = 12, H₀: μ = 0, Hₐ: μ neq 0 π; we find π t = -1.9 π. Calculate the P-value.
3. With π n = 15, H₀: σ² = 8, Hₐ: σ² π &l

a) 0.0735
b) 0.0732
c) 0.0934
d) 0.0932