_{Suppose you are a biologist studying fishing data before and after a major fire. Fishing reports include the number of trout caught per day per fisherman. A simple random sample of} n₁₌ 167 _{reports from the period before the fire showed that the average catch was 1 = 5.2 trout per day. Assume that the standard deviation of daily catch per fisherman during this period was 1.9. Another simple random sample of} n_{2= 125 fishing reports 5 years after the fire showed that the average catch per day was 2= 6.8 trout. Assume that the standard deviation during this was 2.3. Use a hypothesis test with significance level a= 0.05 to test the claim that the average fisherman caught more trout per day after the fire than before the fire.}

_{[ZTest] OR [TTest] OR [2-SampZTest] OR [2-SampTTest] ? (Circle one)}

_a: or Sx_{1: 1:} n_1:

orSx_{1: 2:}n_2:

(Circle the original claim)-H_0:H_a:

One- sided leftOne- sided rightTwo-sided(Circle One)?

Test Statistic:z or t

Critical Value(s) (based on a or ) :

Graph( Sketch):

P-value:

Conclusions? (Circle One): Reject H₀Fail to Reject H₀

Interpretation?