Question

3. Take the mean and standard deviation of data set A calculated in problem 1 and assume that they are population parameters (μ and σ) known for the variable fish length in a population of rainbow trouts in the Coldwater River. Imagine that data set B is a sample obtained from a different population in Red River (Chapter 6 problem!).

1. Conduct a hypothesis test to see if the mean fish length in the Red River population is different from the population in Coldwater River.
2. Conduct a hypothesis test to see if the variance in fish length is different in the Red River population compared to the variance in the Coldwater population.

	Dataset A	Dataset B+0.5
	48.79	53.32
	49.72	51.74
	49.71	51.98
	49.59	52.02
	49.59	51.91
	51.12	51.62
	50.67	50.93
	51.02	50.08
	50.94
	51.19
Mean	50.234	51.7
S.D	0.847128	0.931557835
Variance	0.717626	0.8678

Answer 1