3. A local charity wants to purchase a classic 1978 Chevy Monte Carlo for use as a prize in a fundraiser.They find the following eight prices in the paper.$17,000$3,000$21,600$96,000lenth$19,000$16,000$18,888$24,200a. What is the best measure of central tendency to use to get a reasonable estimate forthe cost of the car? Explain.b. What is the range?cialni priho

A local charity wants to purchase a classic 1978 Chevy Monte Carlo for use as a prize in a…

Answered: a. What is the best measure of central…

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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Fitting a straight line to a set of data yields the following prediction line. Complete (a) through (c) below. ₁=8+4X, a. Interpret the meaning of the Y-intercept, bo. Choose the correct answer below. O A. The Y-intercept, b = 8, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 8 units. B. The Y-intercept, bo = 4, implies that when the value of X is 0, the mean value of Y is 4. OC. The Y-intercept, b = 8, implies that the average value of Y is 8. O D. The Y-intercept, b = 8, implies that when the value of X is 0, the mean value of Y is 8. b. Interpret the meaning of the slope, b₁. Choose the correct answer below.
what is the interquartile range of the data shown in the blox plot above?
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). (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 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 uniform, not normally distributed. E. The variable "weekly time spent watching television" is likely skewed right, not normally distributed. (b) According to a certain survey, adults spend 2.25 hours per day watching television on a weekday. Assume that the standard deviation for "time…
In a study by the Child Health and Development Studies, all pregnancies between 1960 and 1967 among women in the Kaiser Foundation Health Plan in the San Francisco East Bay area were reviewed. The collected information included: . . . . ● The weight of the infants in ounces (bwt) The length of pregnancy in days (gestation), The mother's age in years (age), The mother's height in inches (height), The mother's pregnancy weight in pounds (weight), Whether the child was the first born (first_pregnancy), and Whether the mother was a smoker (smoke). The following tables are generated by Rguroo's linear regression analysis performed on part of the data: Cases Used in the Analysis Data Used Number of cases read Number of cases used in analysis Number of incomplete cases (omitted) Term (Intercept) gestation age height weight smoke Yes first_pregnancy Yes Residual Standard Error Regression Coefficients Estimates Coefficient Standard Estimate Error -73.887 0.43676 -0.11761 0.93463 0.054383 8.1294…
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). (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? O A. The variable "weekly time spent watching television" is likely uniform, not normally distributed. O B. The variable "weekly time spent watching television" is likely skewed left, not normally distributed. O C. The variable "weekly time spent watching television" is likely normally distributed. O D. The variable "weekly time spent watching television" is likely skewed right, not normally distributed. O E. The variable "weekly time spent watching television" is likely symmetric, but 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…
The accompanying table shows a list of the weights and costs of some turkeys at different supermarkets. Complete parts (a) through (f) below. Weight (pounds) Cost 12.3 $17.14 18.1 $23.89 20.5 $26.81 16.5 $19.86 15.7 $23.25 10.2 $9.11 1. Report the equation of the best-fit straight line, using weight as the predictor (x) and cost as the response (y). Predicted Cost=enter your response here + enter your response here Weight (Round to two decimal places as needed.) 2. What is the slope? 3. What is the new value of r=?
QQQ3. Diamond PricesWeight 0.3 0.4 0.5 0.5 1.0 0.7Price 510 1151 1343 1410 5669 2277Find the best predicted price for this diamond with a weight of 1.50 carats. Is the result close tothe actual price of $16,097? What is wrong with predicting the price of a 1.50-carat diamond? Between the two variables.d) Find the regression equation,e) Letting the first variable be the predictor (x) variable, find the indicated predicted value.
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. OB. 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" 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 "time…
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A social work student is interested in studying the relationship between an adult's age and their view on off-shore drilling. The student plans to compare adults who consider themselves Extremely anti-drilling, Anti-drilling, Neutral, Pro-drilling, and Extremely pro-drilling. The researcher chose to measure age as a number between 18 and 110. What level of measurement is age for this research question? a. nominal b. ordinal C. interval-ratio d. None of the above A social work student is interested in studying the relationship between an adult's age and their view on off-shore drilling. The student plans to compare adults who consider themselves Extremely anti-drilling, Anti-drilling, Neutral, Pro-drilling, and Extremely pro-drilling. What is independent variable? a. Age b. view on off-shore drilling C. state in which the person lives d. none of the above
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). ..... (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 normally distributed. B. The variable "weekly time spent watching television" is likely symmetric, but not normally distributed. C. The variable "weekly time spent watching television" is likely uniform, not normally distributed. D. The variable "weekly time spent watching television" is likely skewed right, not normally distributed. E. The variable "weekly time spent watching television" is likely skewed left, not normally distributed. (b) According to a certain survey, adults spend 2.35 hours per day watching television on a weekday. Assume that the standard deviation for "time…
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a. What is the best measure of central tendency to use to get a reasonable estimate for the cost of the car? Explain. b. What is the range? ofru