3. The following sample contains values of the price and quantity sold of a particularcommodity. Use quantity sold as the dependent variable Y.Price (X)Quantity sold(Y)6.00 3.00 7.00 1.0053 67 48760.916 and prediction accuracy is 91.6%.0.916 and prediction accuracy is 8.4%.Σæ=27, Σ y=342, Σ m2 =163, Σ wy=1295, Σ υ = 21062, n = 6.d. Find the coefficient of determination and interpret.2.00 8.000.957 and prediction accuracy is 95.7%.0.957 and prediction accuracy is 4.3%.7028

The following information has been given: ∑x=27 ∑x2=163 ∑y=342…

Answered: 3. The following sample contains values…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A survey taken in a hotel shows the number of cups of coffee consumed with each meal.Find the relative frequency corresponding to the meal number 5. Frequency 5 Meal Number 3 3 2 а. 50% b. 20% 30% d. 40%
a 24. Calculate coefficient of concurrent deviation from the following data : Price 368 Price Imports Imports 384 26 22 21 384 9b er i t ng 24 385 es yhslimie 29 of boTs (aunim) ng 28 ooisv 27 361 20 S JU Nse 400 ntessia el ul22 bidi erb orber385 347 eir)
The following table contains 2 variables and 5 observations.
The data shown to the right for the dependent variable, y, and the independent variable, x, have been collected using simple random sampling. X. y 12 140 a. Construct a scatter plot for these data. Based on the scatter plot, how would you describe the relationship between the two variables? b. Compute the correlation coefficient. 15 170 11 130 13 160 15 180 10 120 14 140 10 150 a. Which graph below shows a scatter plot for these data? O A. OB. C. O D. Ay 200-4 Ay 200- 本y 15- Ay 15- 0+ 10 0+ 10 10+ 15 10 15 200 200 Click to select your answer(s).
L6Q3.Which of the following tables shows the data in the scatter plot below?
1. The following data was used to determine the concentration of arsenic in a river using atomic absorption spectrometry. Three replicate measurements were recorded for each sample and the absorbance values below are the averages. Conc. As (ppb) Abs. 2.5 0.0297 5.0 0.0588 7.5 0.0782 10.0 0.1039 Unknown 0.0615 a. Graph the data and determine the slope and and intercept. Use Excel-possibly the LINEST function- to determine the standard error about the regression. This is the uncertainty in the absorbance. b. C. d. e. Calculate the concentration of the arsenic in ppb. Do not worry about rounding to the correct number of significant figures until part e of this question. Determine the absolute uncertainty (i.e., standard devation) of the arsenic concentration for the unknown. Write the As concentration and its standard deviation to the correct number of significant figures.
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The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). C (a) Do you think the variable "weekly time spent watching television" would be normally distributed? If not, what shape would you expect the variable to have? A. The variable "weekly time spent watching television" is likely skewed right, not normally distributed. O B. The variable "weekly time spent watching television" is likely symmetric, but not normally distributed. O C. The variable "weekly time spent watching television" is likely skewed left, not normally distributed. O D. The variable "weekly time spent watching television" is likely normally distributed. O E. The variable "weekly time spent watching television" is likely uniform, not normally distributed. (b) According to a certain survey, adults spend 2.45 hours per day watching television on a weekday. Assume that the standard deviation for…
Example 24 : In eight throws of a die 5 or 6 is considered a success. Find the mean number of success and the standard deviation.
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