Good website design can make Web navigation easier. A sample of 10 users using a conventional Web design averaged 32.3 items identified, with a standard deviation of 8.56. A sample of 1o users using a new structured Web design averaged 44.1 items identified, with a standard deviation of 10.09. a) The above research presents a comparisen of item recognition between two designs. Does the newly structured design best recognize item and why? b) How will the above decision on the new web design influence future decision? c) A probability density function is of the form f(x) = ke -ixl IrE (-50,co). Estimate the value of k. d) A hydraulic structure has four gates which operate independently. The probability of failure off each gate is 0.2. given that gate 1 has failed. Estimate the probability that both gates 2 and s will fail?
Question 8
Good website design can make Web navigation easier. A sample of 10 users using a conventional Web design averaged 32.3 items identified, with a standard deviation of 8.56.
A sample of 1o users using a new structured Web design averaged 44.1 items identified, with a standard deviation of 10.09.
a) The above research presents a comparisen of item recognition between two designs. Does the newly structured design best recognize item and why?
b) How will the above decision on the new web design influence future decision?
c) A probability density
f(x) = ke
-ixl
IrE (-50,co). Estimate the value of k.
d) A hydraulic structure has four gates which operate independently.
The probability of failure off each gate is 0.2. given that gate 1 has failed. Estimate the probability that both gates 2 and s will fail?
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