Question 637016
PART (i)
{{{H[0]}}}:    µ ≤ 30
{{{H[1]}}}:    µ > 30 

z Test
Test Statistic, z: 1.5238
Critical z:        1.6449
P-Value:           0.0638

Fail to Reject the Null Hypothesis because the p-value is greater than α = .05.
There is NO sufficient evidence to conclude that the actual delivery time is larger than what is claimed by the pizza parlor.

PART (ii)

{{{H[0]}}}:    µ = 30
{{{H[1]}}}:    µ ≠ 30

z Test
Test Statistic, z: 1.5238
Critical z:        ±1.9600
P-Value:           0.1276

Fail to Reject the Null Hypothesis because the p-value is greater than α = .05. NOT significantly different from 30 minutes.