Does the order in which wine is presented make a difference? several choices of wine are presented one at a time and in sequence, and the subject is then asked to choose the preferred wine at the end of the sequence. in this study, subjects were asked to taste two wine samples in sequence. both samples given to a subject were the same wine, although subjects were expecting to taste two different samples of a particular variety. of the 32 subjects in the study, 22 selected the wine presented first, when presented with two identical wine samples. how large a sample would be needed to obtain margin of error ±0.05 in the study of choice order for tasting wine? let ^p=0.6875 .

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

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step-by-step explanation:

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step-by-step explanation:

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step-by-step explanation: