The owner of Burger king wishes to compare the sales per day at two locations.
The mean number sold for 10 randomly selected days at the Perak state was 83.55, and the standard deviation was 10.5.
For a random sample of 12 days at the Pahang state was 78.80 with the standard deviation of 14.25.
At the 5% significance level, is there a difference in the mean number of burgers sold at the two locations?