A provincial minister claims the area of BCs provincial parks follows a normal distribution with average 137.6km2. An environmental group believes that the actual area is less than the reported figure. The group selects a random sample of 9 provincial parks which had an average of 109.11km2 and standard deviation of 88.99km2. At =0.05, is there enough evidence to reject the provincial ministers claim?

(a)Hypothesis Test (Four steps)

Construct a 95% confidence interval for the average area of BCs provincial parks