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DiKsa [7]
3 years ago
5

A specialty shoe manufacturer developed a new insole for running shoes. A study was produced in which some participants were giv

en the insoles of a competitor’s product without the participants’ knowledge. Which element of experiment design is known to be a part of this study?
A.
blinding

B.
randomization

C.
replication
Mathematics
2 answers:
Alexandra [31]3 years ago
5 0
Blinding is part of this, as the participants do not know whether they received the competitor's product.
Reptile [31]3 years ago
3 0

The element of experiment design here is blinding experiment.

A blinding experiment is the practice of not telling its subjects (people who are undertaking the experimental trial) what they are given and through which source. This is an important methodological feature as it minimizes bias and maximize the validity of the results.

So, here it is a blinding experiment as the participants do not know whether they are receiving the competitor's product or the manufacturer's product.

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Answer:

The fifth degree Taylor polynomial of g(x) is increasing around x=-1

Step-by-step explanation:

Yes, you can do the derivative of the fifth degree Taylor polynomial, but notice that its derivative evaluated at x =-1 will give zero for all its terms except for the one of first order, so the calculation becomes simple:

P_5(x)=g(-1)+g'(-1)\,(x+1)+g"(-1)\, \frac{(x+1)^2}{2!} +g^{(3)}(-1)\, \frac{(x+1)^3}{3!} + g^{(4)}(-1)\, \frac{(x+1)^4}{4!} +g^{(5)}(-1)\, \frac{(x+1)^5}{5!}

and when you do its derivative:

1) the constant term renders zero,

2) the following term (term of order 1, the linear term) renders: g'(-1)\,(1) since the derivative of (x+1) is one,

3) all other terms will keep at least one factor (x+1) in their derivative, and this evaluated at x = -1 will render zero

Therefore, the only term that would give you something different from zero once evaluated at x = -1 is the derivative of that linear term. and that only non-zero term is: g'(-1)= 7 as per the information given. Therefore, the function has derivative larger than zero, then it is increasing in the vicinity of x = -1

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Answer:

x^2-3x=4

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Step-by-step explanation:

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