An ROC curve is plotted between............... (Multiple answers may be correct) Group of answer choices True positive rate and false positive rate True positive rate and (1-false positive rate) Sensitivity and specificity Sensitivity and (1-Specificity)
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- A conclusion that differences in the explanatory variableactually causes differences in the response variablewould require a design that usesA) a random sample.B) random samples taken from at least two differentpopulations.C) a random sample of individuals who are thenrandomly assigned to treatment groups.D) a control group.E) random assignment of individuals to treatmentgroups.When it first debuted, Telsa was selling its Model 3 sedan for $35,000. The Model 3 was priced substantially less than Tesla’s other models at the time, however, it had similar quality and input costs. In charging such a low price, it is most likely that Tesla is trying to: A. Create more value without capturing more value B. Capture more value without creating more value C. Create and capture more value D. None of the aboveExplain or define each of these terms:a. Laplace criterionb. Minimax regretc. Expected valued. Expected value of perfect information
- Your MD called you in his office today and said that, “I have observed that most of the performance appraisers are not doing justice to their role as appraisers. Mostly, they are committing following errors: a) Halo Error. - b) Central Tendency Error. c) Spillover Error. MD wants you to write down a clear example for each error.(c) Based on what we know about Observation B, if the cutoff value is lowered to 0.2, what happens to the values of sensitivity and specificity? Explain. Use the ROC curve to estimate the values of sensitivity and specificity for a cutoff value of 0.2. If required, round your answers to three decimal places. Do not round intermediate calculations. Answer Part C, there are no other parts here. I have the sensitivity already and is equal to 1. What is the specificity??If you are not 100% sure you are right, do not attempt this is frustrating. The cutoff value has changed from 0.5 to 0.2. The sensitivity is 1 which is correct. I need help with the specificity. Sensitivity does not equal 1/14 and specificity does not equal 1/31 so don't answer that and do not answer any other parts just answer part C.Choose all answers that form a true statement: “When performing Savitzky–Golay polynomial smoothing, increasing the number of data points used to perform the smoothing can result in …”: a. spectral distortion b. noisy data c. a decrease in the number of points in the data set. d. a shift in the data points to the right. For each option above (a-d) that forms a true statement, explain why it is true and what the ramification is for using smoothed data to interpret the behavior of the chemical system under study.
- Which of the following is not a correct expectation regarding the benefits of ensemble methods? A. Better model performance. B. Better model stability. C. Better model interpretability. D. All of the above.Which of the following is a distinguishing characteristic of using goalpost conformance for settingquality expectations?a. The use of Six Sigma performance standardsb. The use of the DMAIC (define, measure, analyze, improve, and control) problem-solving methodc. The use of Taguchi quality loss functions for control purposesd. The use of quality expectations expressed as a specified range around a targeted qualityperformance levelWhich of the following is an application of NLP ? Group of answer choices Summarizing a text or article Predicting the genre of books Speech recognition All of the options are true
- For unbalanced data, select the performance measure that is not recommended to use. Group of answer choices Accuracy ROC Curve AUC SensitivitySYSTEM IDENTIFICATION 15- The concept of "whether the parameters of a model set can be uniquely determined from the predictor filters or not" is called: A. identifiability B. stability C. prediction D. differentiability E. observability ANSWER and write the reason? acan you help me answer this questions: 1-A moving average is the average of the observations in the past few periods, where the number of terms in the average is the span. True False 2- All nominal data may be treated as ordinal data. False True 3 - Phone numbers, Social Security numbers, and zip codes are typically treated as numerical variables. True False 4 - Correlation is useful only for: a.measuring the strength of a linear relationship. b.conveying the same information in a simpler format than a scatterplot. c.measuring the strength of a nonlinear relationship. d.assessing the weakness of a linear relationship. 5 - Which of the following will give the value for the third quartile? a. QUARTILE.INC(array, 0.25) b.QUARTILE.INC(array, 0.75) c. PERCENTILE.INC(array, 0.75) d.DECILE.INC(array, 0.30) 6 - _______ sampling applies to populations that are divided into natural subsets and allocates the appropriate proportion of samples to each subset.…