Discussion:
Q: An environmentalist estimates that the more waste recycled by adults in the country is more than 1 pound per person per day. You want to test this claim. You find that the mean waste recycled per person per day for a random sample of 9 adults in the country is 2 pounds and the standard deviation is 0.3 pound. At a = 0.10, can you support the claim? assume the population is normally distributed.
a) Find the critical values and identify the rejection regions
b) Find the standardized test statistic
c) Decide whether to (reject or fail) the null hypothesis?