Question

Are nursing salaries in Tampa, Florida, lower than those in Dallas, Texas? Salary data
show staff nurses in Tampa earn less than staff nurses in Dallas (The Tampa Tribune,
January 15, 2007). Suppose that a follow-up study 40 staff nurses in Tampa and 50
staff nurses in Dallas you obtain the following results.

Tampa Dallas

n1 = 40 n2 = 50
x1 = $56,100 x2 = $59,400
s1 = $6,000 s2 = $7,000

Test to see if salaries of nurses in Tampa are significantly lower than those of staff nurses in Dallas using a 1% significance level. Use the critical value approach.

Answer 1