(a) Explain Monte Carlo simulation and how it works. (b) Explain the meaning of statistical pattern recognition. (c) Discuss any TWO (2) basic models in pattern recognition.
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- To perform a certain type of blood analysis, lab technicians must perform two procedures. The first procedure requires either one or two separate steps, and the second procedure requires either one, two, or three steps. (a) List the experimental outcomes associated with performing the blood analysis. (Select all that apply.) (1)(2)(3)(1, 1)(1, 2)(1, 3)(2, 1)(2, 2)(2, 3)(3, 1)(3, 2)(3, 3) (b) If the random variable of interest is the total number of steps required to do the complete analysis (both procedures), show what value the random variable will assume for each of the experimental outcomes. (If an experimental outcome does not occur, enter NONE.) ExperimentalOutcome Number of StepsRequired (1) (2) (3) (1, 1) (1, 2) (1, 3) ExperimentalOutcome Number of StepsRequired (2, 1) (2, 2) (2, 3) (3, 1) (3, 2) (3, 3)Fast reactions: In a study of reaction times, the time to respond to a visual stimulus x and the time to respond to an auditory stimulus y were recorded for each of 8 subjects. Times were measured in thousandths of a second. The results are presented in the following table. The results are presented in the following table. Use the TI-84 calculator. Visual Auditory 161 159 176 163 178 201 188 193 191 169 211 189 235 241 228 209 Compute the least-squares regression line for predicting the time to respond to an auditory (y) from the time to respond to a visual stimulus (x). Round the slope and y-intercept values to at least four decimal places.For a particular red wine, the following data show the auction price for a 750-milliliter bottle and the age of the wine in June of 2016. Age (years) 37 20 29 33 41 26 29 45 34 22 Price ($) 256 142 217 255 331 168 209 297 237 182
- A data set is given below. (a) Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y. (b) Given that x= 3.3333, s= 2.5033, y = 4.0667, s, = 1.9449, and r= - 0.9585, determine the least-squares regression line. (c) Graph the least-squares regression line on the scatter diagram drawn in part (a). 3 4 5.8 6.3 5.1 3.4 1.8 2.0 重 (a) Choose the correct graph below. OA. O B. OD. 本y 7- Ay 本y 7- AY 7- 0- 0. 0- 0. 6. There appears to be relationship. (b) ŷ =[]x+ (D (Round to three decimal places as needed.) (c) Choose the correct graph below. O A. О В. OC. O D. Ay 7- Ay 7- 0- 0. 9. 6. O Time Remaining: D TCOA2334403 U 10-8-2014 MAIN TCOA2330401 (2) Q 出What is meant when a statistician talks about getting a "best fit" least squares regression line (hint: what is the mathematical relationship behind this?)A data set is given below. (a) Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y (b) Given that x =3.5000, s, = 2.2583, y = 4.4667, s, = 1.7682, and r= -0.9416, determine the least-squares regression line. (c) Graph the least-squares regression line on the scatter diagram drawn in part (a). 6 3 4 5.4 68 5.6 4.0 2.3 2.7 1 y (a) Choose the correct graph below. O A Oc. Q There appears to be V relationship (b) y=+ O (Round to three decimal places as needed.) (c) Choose the correct graph below. O A OB. OC. OD.
- East reactions: In a study of reaction times, the time to respond to a visual stimulus (x) and the time to respond to an auditory stimulus (y) were recorded for each of 8 subjects. Times were measured in thousandths of a second. The results are presented in the following table. Visual Auditory 235 241 176 163 188 193 191 169 203 206 228 209 178 201 161 159 Send data to Excel The least-squares regression line y = bo+b,x= 13.9031+0.9165x and E (x- x) =4624.0000 are known for this data. Construct a 95% confidence interval for the slope. Round the answers to at least four decimal places. The 95% confidence interval is < B, <| ]. Micr DEC w P 9. MacBook Air の)Preventing heart attacks: Medical researchers performed a comparison of two drugs, clopidogrel and ticagrelor, which are designed to reduce the risk of heart attack or stroke in coronary patients. A total of 6663 patients were given clopidogrel, and 6740 were given ticagrelor. Of the clopidogrel patients, 654 suffered a heart attack or stroke within one year, and of the ticagrelor patients, 577 suffered a heart attack or stroke. Can you conclude that the proportion of patients suffering a heart attack or stroke differs between ticagrelor and clopidogrel? Let p, denote the proportion of patients suffering a heart attack or stroke with clopidogrel and p, denote the proportion of patients suffering a heart attack or stroke with ticagrelor. Use the a=0.01 level of significance and the P-value method with the TI-84 Plus calculator. Part 1 of 4 State the null and alternate hypotheses. Ho: H : This hypothesis test is a (Choose one) v test. Español Find the P-value. Round the answer to four…Why is Monte Carlo simulation necessary? Give an example of how it could be used in an actual business situation
- A junior high social studies teacher finds that some of his students can easily remember the ideas he presents, yet others have trouble remembering information from one day to the next. He suspects that the students who have better memories for class material are those who are taking more complete notes in class. He collects students' notebooks one day and finds that students who are doing well on classroom assessments take a lot more notes than students who are doing poorly. (a) Classify the research as one of the following: Quantitative/descriptive Quantitative/correlational Quantitative/experimental Quantitative/quasi-experimental Qualitative Mixed methods, and then (b) Identify one or more conclusions that might reasonably be drawn from this study and, if relevant, one or more conclusions that cannot be drawn from the study.Preventing heart attacks: Medical researchers performed a comparison of two drugs, clopidogrel and ticagrelor, which are designed to reduce the risk of heart attack or stroke in coronary patients. A total of 6728 patients were given clopidogrel, and 6678 were given ticagrelor. Of the clopidogrel patients, 573 suffered a heart attack or stroke within one year, and of the ticagrelor patients, 672 suffered a heart attack or stroke. Can you conclude that the proportion of patients suffering a heart attack or stroke is greater for ticagrelor? Let p₁ denote the proportion of patients suffering a heart attack or stroke with clopidogrel and p2 denote the proportion of patients suffering a heart attack or stroke with ticagrelor. Use the a= 0.05 level of significance and the P-value method with the TI-84 Plus calculator. Part: 0 / 4 Part 1 of 4 State the null and alternate hypotheses. Ho: H₁ : This hypothesis test is a (Choose one) ▼ test. O
