Avirologist has asked you to design an experiment to compare the effects of two different media (a and b) and two different incubation times (12 and 18 hours) on the growth of a specific bacteria. she has access and money to do 24 different runs (single combination of the two factors like media a for 12 hours) but can only do as many as 6 runs a day. (a) based on this information, propose two potential balanced designs that use all 24 runs and present an anova table with sources and degrees of freedom. (b) suppose the experimenter wants to minimize the length of a 95% confidence interval for a treatment difference (mi - hi). which of the two designs proposed in (a) is better? explain.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.