With the aid of an illustration from a well labelled diagram, explain a cross over experimental design using a scenario with thr
1 answer:
A crossover design is a reiterated assessments design in which each experimental unit (patient) receives various treatments at different time periods, i.e., the patients switch from one therapy to another during the trial.
<h3>What is the advantage of a crossover design?</h3>The crossover design has the benefit of each subject acting as his or her own control, and it requires a lesser number of patients than parallel-group trials.
There are various drawbacks. For example, crossover designs often last longer than parallel-group research.
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Answer:
Step-by-step explanation:
I have reproduced a diagram of the question in the attachment.
To do a price comparison, we simply find the areas of both the deck and garden in Plan A and Plan B.
In Plan A,
Deck Measures 18 feet by 25 feet
Garden measures 9 feet by 12 feet
Area of Garden = 12 X 9 =108 square feet
Area of Deck (in Gray) = (18 X 25) - (12 X 9) =450-108 =342 square feet
Cost of Garden =$1.40 X 108=$151.2
Cost of Deck = $4.20 X 342=$1436.4
Total Cost for Plan A= $151.2+ $1436.4=$1587.6
In Plan B
Deck Measures 16 feet by 20 feet
Garden has a radius of 5 feet
Area of Garden =
Area of Deck (in Gray) = (16 X 20) - ( ) =320-78.5 =241.5 square feet
Cost of Garden =$1.40 X 78.5=$109.9
Cost of Deck = $4.20 X 241.5=$1014.3
Total Cost for Plan B= $109.9+ $1014.3=$1124.2
Total Cost for Plan A=$1587.6
Total Cost for Plan B=$1124.2
Plan B is less expensive by $1587.6-$1124.2= $463.4
