## Related questions with answers

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 in a follow-up study of 40 staff nurses in Tampa and 50 staff nurses in Dallas you obtain the following results.

$\begin{array} { r l } { \text { Tampa } } & { \text { Dallas } } \\ { n _ { 1 } = 40 } & { n _ { 2 } = 50 } \\ { \overline { x } _ { 1 } = \$ 56,100 } & { \overline { x } _ { 2 } = \$ 59,400 } \\ { s _ { 1 } = \$ 6000 } & { s _ { 2 } = \$ 7000 } \end{array}$

Formulate hypothesis so that, if the null hypothesis is rejected, we can conclude that salaries for staff nurses in Tampa are significantly lower than for those in Dallas. Use $\alpha$= .05.

Solution

VerifiedIn this exercise, we determine the hypotheses corresponding to a hypothesis test about the difference in population means.

*What are the two types of hypothesis that can be defined?*

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