Author: Anonymous

Which of the following is the pigment unique to rods?

Which of the following are examples of communication blocks? (Select all that apply)

5. Der Flammkuchen kocht sechs Minuten lang.

Should zoos be abolished? Pick a side and write a complete essay of at least 750 words that provides reasons and evidence to prove why your side is correct. Don’t forget to address at least one counterargument. Remember that you may not access the internet for any reason, even for brainstorming purposes. That’s plagiarism!

BONUSPUNKT! In the richtig/falsch section above (questions 2-6), there are three separable prefix verbs! Name the infinitive forms of all three verbs for an extra credit point. (+1 point)

Describe the fundamental difference between SIMD (Single Instruction, Multiple Data) and MIMD (Multiple Instruction, Multiple Data) architectures using Flynn’s Taxonomy as the basis. Explain why many modern CPUs (specifically multi-core processors) actually contain characteristics of both SIMD and MIMD. In your explanation, identify the hardware components responsible for each characteristic.

A weight loss program tracks 13 participants’ weights before and after a 6-week program. The population of weight is known to be normally distributed. The measurement is provided below. For this investigation use diff= Before – After Participant 1 2 3 4 5 6 7 8 9 10 11 12 13 Before (lbs) 180 195 170 205 188 175 192 215 178 196 243 179 219 After (lbs) 175 190 168 198 183 172 185 201 162 181 240 176 199 The sample mean of differences(Before – After) = lbs The sample standard deviation for difference = lbs To test if the weight loss program is effective, we set up: H₀: μ_d = 0 vs H₁: μ_d > 0. The test statistic = The p-value for this test = to 4 significant figures(4 numbers after zeros after decimal point)

You are given the following C++ program that performs naïve matrix multiplication for increasing matrix sizes:   // Naive square matrix multiplication: C = A * B (all n x n)void matmul(const std::vector &A,            const std::vector &B,            std::vector &C) {     int n = A.size();     for (int i = 0; i < n; ++i)        for (int j = 0; j < n; ++j)            for (int k = 0; k < n; ++k)                C[i][j] += A[i][k] * B[k][j];}   Assume the main() function measures the runtime for matrix sizes n = 100, 200, 400, 800, 1600.  The computational complexity (i.e. the number of floating-point operations) performed by matmul() is proportional to n3 (written as O(n3)).  Answer the following:   (a) If the time for  n = 200  is measured to be 0.25 seconds, estimate the expected runtime for: n = 400 n = 800 Assume ideal cubic scaling (O(n3)) (b) In reality, the measured execution times for large matrices (e.g., n = 1600 ) are often much worse than the ideal cubic prediction. Explain two reasons related to memory hierarchy or cache behavior that cause this slowdown. (c) Explain why matrix multiplication is embarrassingly parallel at the level of output elements, and briefly describe how OpenMP could parallelize the outer loops. Suppose a student parallelizes the i loop with OpenMP and obtains the following runtimes: threads time (s) 1 8.0 4 2.8 8 1.9 Compute for 8 threads: speedup efficiency Then state one likely bottleneck limiting scalability.

Winter Glow Candle Co. is preparing its seasonal inventory for a limited-edition Holiday Spice candle that will be sold only during November and December.Because production is slow and expensive to restart, the company must choose one order quantity before the season begins. Each candle costs the company ten dollars to produce. The candle sells in stores for twenty-five dollars. Any leftover candles at the end of the season can be sold to an outlet retailer for two dollars each. Forecasted demand for the season is normally distributed with a mean of 800 units and a standard deviation of 150 units.   Using the scenario above, what is the desired customer service level (critical fractile)?

[Continued with the scenario] Using the CSL from the previous question, compute the optimal seasonal order quantity.   Winter Glow Candle Co. is preparing its seasonal inventory for a limited-edition Holiday Spice candle that will be sold only during November and December.Because production is slow and expensive to restart, the company must choose one order quantity before the season begins. Each candle costs the company ten dollars to produce. The candle sells in stores for twenty-five dollars. Any leftover candles at the end of the season can be sold to an outlet retailer for two dollars each. Forecasted demand for the season is normally distributed with a mean of 800 units and a standard deviation of 150 units.