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An LTI system is described by the difference equation

. Its output signal

approximates computation of the second derivative of the input signal

. i) Calculate and sketch the system impulse response

(recall that

when

). Is this a causal system? Is it (BIBO) stable? State reasons for your answers. ii) Consider the input signal

(in this vector representation of

, the underlined sample is the sample at time index

; sample values at other time indices not listed have zero values). Calculate the output

over

, where ***denotes linear convolution. Use a tabular approach to evaluate the convolution. Over what time indices

is the output

neither transient nor end effect? Briefly explain, iii) Compute

numerically using the Matlab function 'conv' and check your answer to part (ii) above. Is the length of

as expected? Explain. [Hint: type "help conv" in the Matlab command window to learn more about the input and output arguments of the "conv" function].

The owners of The Grass is Always Greener lawn care company conduct a hypothesis test to see if their new fertilizer is more effective than their old brand, as they have reason to believe it will be. At an alpha of .05, they find a p-value of .017. They can conclude that there is now enough support to say that the new fertilizer is more effective. True False

Question content area top Part 1 The environmental uncertainty matrix shows that firms operate in environments that have two aspects of uncertainty. What are these two? aspects? Question content area bottom Part 1 A. Market concentration and market dispersion B. Risk and return C. International exposure and domestic exposure D. Degree of change and degree of complexity E. Product homogeneity and product differentiation

How did the strategies you used to enhance collaboration and communication during the change process impact overall organizational success? Looking back on your experience, what would you do differently to further improve teamwork and communication in future change management initiatives?

Convert to radian measure. Leave the answer in terms of p. - 214.6°

identify databases for statistical information on the utilization rates and other measures of quality performance (e.g., average length of stay, patient wait times, and death rates), and select a healthcare statistic

38 Multiple Choice 2 points Which situation poses the greatest risk of a liability lawsuit? Limited customer service availability Inadequate safety labeling on a dangerous product Charging premium prices for low-quality goods Using eco-friendly materials in packaging Clear my selection

Select the necessary words from the list of possibilities to complete the following statements. StatementsAnswer1. An __________ is the written contract summarizing the relationship between the auditors and the client.2. When CPAs are associated with __________ financial statements, a possibility exists that the client may misinterpret the extent of the CPAs' services and believe that the accountants are acting as auditors.3. The __________ case, a landmark case of liability under the Securities Act of 1933, involved criticism of the auditors' review for subsequent events.4. Under the Securities Act of 1933, initial purchasers of securities may sue the auditors for misleading audited financial statements and need not prove that they relied on the financial statements. The burden of proof is on the auditors to prove that they were __________ in the performance of their work.5. When damage to another is directly attributable to a wrongdoer's act, __________ is said to exist.

When Lishan tells his audience, “80 percent of you did not know that there is a Chinese Valentine’s Day” he does not address the 20 percent who did know. Lishan is at risk of which of the following pitfalls of audience analysis?