Household weekly spending at Aldi data collected from 50 families in Sydney had a sample mean of $156 with a population standard deviation of $16. Test the hypothesis that the average weekly spending at Aldi is $150 and finds a p-value of 0.011. At the 5% significance level, the conclusion of the test will be

a: since p-value > 0.05, reject HO

b: since p-value > 0.05, do not reject HO c: since p-value < 0.05, accept HO d: Since p-value < 0.05, reject HO