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- Would a data series that contains values grouped into 10 categories be better displayed as a pie chart or a column chart? explain whyWhat are control values that are far from the main set of values. ______occurs when the data set can be accurately described by the SD and the mean , when the data elements are centered around the mean and focuses on the distribution of errors Defined as the number of independent data points from the mean. Is present in all measurements. due to instrument, operator and environmental conditions (ex. pipetting error, mislabelling, temperature flocculation, improper mixing of sample and reagents). Highest frequency of clerical errors occur with the use of handwritten labels and request forms. Most widely used chart. Is a graphic representation of the acceptable limits of variation.For unbalanced data, select the performance measure that is not recommended to use. Group of answer choices Accuracy ROC Curve AUC Sensitivity
- can 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.…Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), “E” or “e” (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where “a” and “b” need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. A survey determines that mint chocolate chip is the favorite ice cream flavor of 6% of consumers. An ice cream shop determines that of 190 customers, 15 customers stated their preference for mint chocolate chip. Find the P-value that would be used to determine if the percentage of customers who prefer mint chocolate chip ice has increased at a 5% level of significance. P-value: Round your answer to four decimal places as necessarWhen 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 above
- A Professor in the College of Engineering at US university presents toys of different car models to show students the main differences between these car model. This type of model is referred to as a. Physical model O b. Mathematical models O c. None is correct O d. Schematic modelsRound all intermediate numbers to four decimal places. The final answer can be rounded to the nearest dollar. Consider a normally distributed process that cuts wood with a "process center" of 32 inches and a standard deviation of .20 inches. The lower specification limit is 32.42 inches. A piece of wood that is cut too short must be scrapped at a cost of $15.60. A piece of wood that is cut too long must be re-cut by hand at a cost of $4.00. The firm runs 22,000 pieces of wood through the machine per day and works 360 days per year. What is the annual fixing cost of this process.Which chi-square-based measure of association has an upper limit larger than 1 for different table sizes? Multiple Choice Cramer’s V Contingency coefficient C None of these choices is correct. phi Pearson
- An Annotated/labeled data pool is an important asset for a data scientist. The more annotated data you can gather, the better your model estimations become towards the unknown variables. A team of data scientists is going to label a new dataset for both future use and the improvement of your current model estimates. They started by recording the amount of time it takes to label one record of data, and found that it took on average 5 minutes for them to do so. They also noted that there is a standard deviation of 5 minutes for the recording time as well. They are allowed to spend 4 hours per day this week (only Monday to Friday) to perform this annotation task. Please find out at most how many records would be labelled by the team in a single week with a probability of at least 97.5%?The Empirical Rule tells us that … a) __________ of the data lies within 1 standard deviation of the mean b) __________ of the data lies within 2 standard deviation of the mean c) __________ of the data lies within 3 standard deviation of the meanDirections: For each of the following situations: a. indentify the independent variable/s b. name the dependent variable; and c. give the two attributes of each variable A study on customer's satisfaction based on the quality of food offered in fast foods.