I rolled a die 50 times and this is the data that I got:

5, 5, 5, 2, 6, 1, 6, 5, 6, 3, 6, 2, 5, 6, 5, 6, 1, 6, 3, 1, 3, 4, 5, 4, 5, 6, 4, 5, 5, 3, 6, 4, 1, 4, 4, 1, 1, 5, 3, 5, 3, 4, 4, 6, 1, 5, 2, 3, 1, 2,

The Mean: 3.88

The Median: 4

Mode: 5

Variance: 3.0057143

Standard Deviation is 1.7336996

What formula would I use to test that the population mean for rolling a single die is 3.5 and how would I work the problem out?