Salary data provided by www.salary.com showed that staff nurses in Tampa, Florida, earn less than st

Salary data provided by www.salary.com showed that staff nurses in Tampa, Florida, earn less than staff nurses in Dallas, Texas (the Tampa Tribune, January 15, 2007). Suppose that in a follow-up study of 42 staff nurses in Tampa and 22 staff nurses in Dallas you obtain the following results

Tampa: n=42 xbar=55000 s =6,500

Dallas: n =22 xbar=59300 s= 7,200

Does the data indicate the average nursing salary in Tampa is smaller than the average nursing salary in Dallas at ?=0.05?

What is The null and Alternative Hypothesis?

What is the the critical Value(s)?

What is the t/z stat?

What is the P-Value(s)?

Construct a 98% confidence interval for the difference in true means. State the C.I. in terms of Tampa-Dallas…..What is the lower and upper endpoint?

 

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