A new research is investigating if a fitness program can lead to significant weight loss over a 6-month period for its participants. To determine this, weight data from two diffeernet groups were collected twenty participants were recorded at the beginning and at the end of the 6-month program. The following weights (in kg) were recorded: Group B, month 0: 85 kg; Group B Month 6: 79 kg Assume that the weights are based on a sample of 20 participants because the program ahs been running for several yhears, the standard deviation of weight loss can be assumed to equal 8 kg in each case. For group B is the weigh loss from month 0 to month 6 statistically significant? Use alpha- 0.05 State the hypotheses. (Let mu1= weight at month 6 and mu2=weight at month 0.)