Question: The Rocky Mountain News (January 24, 1994) indicated that the 20-year mean snowfall in the Denver/Boulder region is 28.76 inches with standard deviation of 7.5 inches. However, for the winter of 1993-1994, the average snowfall for a sample of 32 different locations was 33 inches. Does this indicate that the snowfall for the 1993-1994 winter has higher than the previous 20-year average?

State the null and alternate hypotheses

Calculate the test statistic

Determine the critical value(s).

State your decision: Should the null hypothesis be rejected?