QUESTION 2: Understanding differences provide us with critical Imaginc thainform

Question

QUESTION 2: Understanding differences provide us with critical Imaginc thainformation about how group are, on average, different or the same. between groups is important, and t-tests can help edtu're a data analyst in the Cardiothoracic Surgery unit at NYU Langone Medical of service provision: ce rur manager has asked you to get a better understanding of a few important aspects Patient understanding of the risks of surgery The effectiveness of how well administrators collect moncy owed for services across two different locations You decide to conduct thrce t-tests to examinc these potential differences. The first two t-tests are paired samples t-tests that compare the patient's rating of their knowledge of the risks of surgery before an informational meeting with the surgeon, and after (note: these tests happen at two different times [before and after the mecting with the surgcon] and in two different locations, and should be interpreted as such). Location A: Mean of the differences: Results of the paired samples t-test: 3.43 (p-0.051 2.01 Location B Mcan of the differences: Results of the paired samples t-test: 6.80 8.73 (p = 0.019) The third t-test is an independent samples t-test that compares the proportion of total charges collected by location (measured as total dollars collected/total dollars charged). Results ofthe independent samples t-test: 13.73 (p = 0.002) Your task is to write a memo to your supervisor that provides: An interpretation of each of the three t-tests . A recommendation for action on both issues (effectiveness of surgcons in explaining the risks of surgery; differences in location in collecting payment for services).

Explanation / Answer

We make the following table summarizing the above queries,

Test Number

Query number

It can be said that patients from location B know well about the risk than that of location A.

Or

Location A patients are already aware of the risks completely and instead of the sigficance effect of surgeons location B patients are still not that aware up to the level of patients from location A

Test Number

Query number

Location A Location B Independent Sample t-test A. Interpretation There is no significant difference( marginally, since p-value is 0.051) Since p-value (=0.019 < 0.05) we claim that there is significant differences) Since p-value is 0.02, there is significant differences between two locations. B. Recommendation of Action Either the patients already new clearly apriori or the surgeons need to be replaced The surgeons were able to increase the knowledge level among the patients

It can be said that patients from location B know well about the risk than that of location A.

Or

Location A patients are already aware of the risks completely and instead of the sigficance effect of surgeons location B patients are still not that aware up to the level of patients from location A

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