Consider Ho: 28 versus H1: =with a line drawn through it 28. A random sample of 36 observations taken from this population produced a sample mean of 24.76. The population is normally distributed with sigma = 9.
a. compute sigma xbar rounding number to four decimal places
b. compute z value. round to two decimal places
c. Find area to the left of z-value on the standard normal distribution. Round to 4 decimal places
d.Find p-value. round to 4 decimal places