A manager at a local Billy Bob’s sandwich shop knows that right now it takes an average (mean) of 54 seconds to assemble a sandwich.  In Dan’s past research, he learned the standard deviation of sandwich production is .7 seconds.   Marisol, a new employee, suggested some changes in the process including: rearranging some vegetable locations and changing the order of other ingredients.  Marisol is sure her ideas will save time without sacrificing quality.  After testing her new methods, the results are:  Marisol’s new method had a mean assembly time of 52.5 seconds for 10 sandwiches.   What is the value of the Z score computed for this hypothesis test?    

Word Embedding includes two different learning models. What are they? (2 pts)How are their learning mechanism different from one another? (4 pts)

CMS accepts only signatures that are

Identify the null hypothesis.

The normal fee charged by a provider is a(n) 

What type of experiment is this? In 1854, a major outbreak of cholera struck a neighborhood in London. Within three days 127 people near Broad Street died. By the end of the outbreak 616 people died. The physician John Snow identified the source of the outbreak as the nearest public water pump, using a map of deaths and illness that revealed a cluster of cases around the pump. In this example, Snow discovered a strong association between the use of the water and deaths and illnesses due to cholera. Snow found that the Southwark and Vauxhall Waterworks Company, which supplied water to districts with high attack rates, obtained the water from the Thames downstream from where raw sewage was discharged into the river. By contrast, districts that were supplied water by the Lambeth Waterworks Company, which obtained water upstream from the points of sewage discharge, had low attack rates. 

Identify the type of managed care structure that is usually the first component of a consumer-driven health plan. 2022 Core Comp VIII.C.1.a

In ICD-10-CM coding, the first character is a:

The was the plane that dropped the atomic bomb on Hiroshima

What does the abbreviation E/M mean?