According to the JBI evidence hierarchy (effectiveness domain), what level of evidence is this article?

According to the JBI evidence hierarchy (effectiveness domain), what level of evidence is this article?

ust answer the questions in the the structure

REFERENCES should be between 2010- 2015

QUESTION 1 (3 marks)

a) Locate, and give the reference for, one article that represents the highest evidence available relating to the changing of intravenous administration sets.
b) According to the JBI evidence hierarchy (effectiveness domain), what level of evidence is this article?
c) What is the evidence regarding the frequency of administration set changes?

QUESTION 2 (10 marks)

a) Identify the appropriate measurement scale for the following:
Variable Measurement Scale
Length
Body temperature
Time of day (Night, Dawn, Noon, Afternoon, Evening)
pH
Hair Colour
Ranking of journals in a category according to impact factor
Presence or absence of infection
Height

b) You construct a survey and create categories for age – what scale is this? Identify one advantage and one disadvantage of measuring the variable in this way.

QUESTION 3 (2 marks)

The lifespan of light bulbs is normally distributed, with a mean life of 850 hours, and a standard deviation of 20 hours.

a) What would be the expected lifespan of approximately 99% of the light bulbs?
b) What percentage of light bulbs should last for at least 830 hours?

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