A sample of 25 light bulbs will be selected to conduct a test to determine if the mean life of the bulb is different than 1000 hours. The sample bulbs had a mean of 994.1 hours and a standard deviation of 30.5 hours. Conduct the test.

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of