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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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cmartinez034 cmartinez034
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A year ago

The management of Regional Hospital has made substantial improvements in their hospital and would like to test and determine whether there has been a significant decrease in the average length of stay of their patients in their hospital.  The following data has been accumulated from before and after the improvements.  At 95% confidence, test to determine if there has been a significant reduction in the average length of stay.

 

After

Before

Sample size

45

58

Mean (in days)

4.6

4.9

Standard Deviation (σ)

0.5

0.6


a.Formulate the hypotheses.
b.Compute the test statistic.
c.Using the p-value approach, test to see if the average length of stay in RFH is significantly less than the average length of stay in GH. Let α = 0.05.

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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eeemmmeeemmm
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A year ago
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cmartinez034 Author
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A year ago
this is exactly what I needed
rhockeygirl
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Yesterday
Thanks
byehoe
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2 hours ago
Just got PERFECT on my quiz
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