In January a bonus plan was introduced as an incentive to the sales team. Using = .01, determine whether the bonus plan has increased sales significantly. The standard derivations are 6.6 after the bonus and 6.8 before the bonus {Note: you need the "variance"}. Assume the population of differences is normally distributed. (NOTE: Data below may be copied into Excel)

Monthly Sales

After Bonus	Before Bonus
94	87
82	84
92	84
76	70
85	75
86	76

a)State Hypothesis

b)State test statistic

c)state P value

d)state conclusion