Test to Perform: The use of one-sample mean, sample size, and population standard deviation are given. Approach: Required hypothesis test at the given significance level; Use the P-value.
2) X = 94, n = 27, σ = 14
Ho: μ = 89
Ha: μ ≠89, α = 0.10
P-value = 0.7188; do not reject Ho
B) σ = 0.36; P-value = 0.3594; do not reject Ho
A) z = 0.0628; reject Ho
D) z = 1.86; P-value = 0.0314; reject Ho
C) z = 1.86; P-value