A random sample of size 64 is drawn from a population whose distribution, mean, and standard deviation are all unknown. The summary statistics are = 36.7 and s = 4.2. Construct a 90% confidence interval for the population mean μ.
a. [36.03, 37.37]
b. [35.84, 37.56]
c. [36.37, 37.03]
d. [35.74, 37.66]
e. [36.28, 37.12]