Situation: The Ipod Touch has been out for two years now and a lot of data has been collected.Relevant Relationship:There is a functional relationship between Price of an IPod Touch,p and Weekly Demand,s.Below is a table of data that have been collectedPrice,p,($) Weekly Demand,s,(1,000s)150216170204190196210189230178250169A.. Find the linear model that best fits this data using regression and enter the model below(for entry round the linear parameter value to nearest 0.01 and constant parameter to nearest 1)s = T(p)B. The squared correlation coefficient rʻ was Select an answer V 0.95(note: values less than 0.95 MAY mean the model is not appropriate for making predictions)Now answer these two questions using the UNROUNDED model parametersC. What does the model predict will be the weekly demand if the price of an ipod touch is $170 ?(nearest 100)D, According to the model at what should the price be set in order to have a weekly demand of170,500 ipod Touches? $(nearest $1)Note: In the "real" world Apple sold about 20 million Ipod Touch's from Sept. 2007-Sept. 2009AnswerQuestion Help: Message instructorSubmit QuestionDECétv S吕0888F7FA

Price (X) Demand (Y) (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar) 150 216 -50 2500 24 576 -1200 170 204 -30 900 12 144 -360 190 196 -10 100 4 16 -40 210 189 10 100 -3 9 -30 230 178 30 900 -14 196 -420 250 169 50 2500 -23 529 -1150 The mean is given by Price Demand The slope is given byThe intercept is given bya)The regression line is given byDemand = 283.4286 - 0.4571Price B)The R-square is greater than 0.95. C)When Price = 170, demand will beDemand = 283.4286 - 0.4571 x 170 = 205.7143 D) When demand = 170.5, price isPrice = (283.4286-170.5)/0.4571 =237.03125

Math

Statistics

-. Find the linear model that best fits this data using regression and enter the model below or entry round the linear parameter value to nearest 0.01 and constant parameter to nearest 1) = T(p) = B. The squared correlation coefficient r was (Select an answer 0.95 note: values less than 0.95 MAY mean the model is not appropriate for making predictions) Now answer these two questions using the UNROUNDED model parameters C. What does the model predict will be the weekly demand if the price of an ipod touch is $170 ? (nearest 100) D, According to the model at what should the price be set in order to have a weekly demand of 170,500 ipod Touches? $ (nearest $1) Note: In the "real" world Apple sold about 20 million Ipod Touch's from Sept. 2007-Sept. 2009 Answer

-. Find the linear model that best fits this data using regression and enter the model below or entry round the linear parameter value to nearest 0.01 and constant parameter to nearest 1) = T(p) = B. The squared correlation coefficient r was (Select an answer 0.95 note: values less than 0.95 MAY mean the model is not appropriate for making predictions) Now answer these two questions using the UNROUNDED model parameters C. What does the model predict will be the weekly demand if the price of an ipod touch is $170 ? (nearest 100) D, According to the model at what should the price be set in order to have a weekly demand of 170,500 ipod Touches? $ (nearest $1) Note: In the "real" world Apple sold about 20 million Ipod Touch's from Sept. 2007-Sept. 2009 Answer

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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Concept explainers

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.

Question

Situation: The Ipod Touch has been out for two years now and a lot of data has been collected.
Relevant Relationship:
There is a functional relationship between Price of an IPod Touch,p and Weekly Demand,s.
Below is a table of data that have been collected
Price,p,($) Weekly Demand,s,(1,000s)
150
216
170
204
190
196
210
189
230
178
250
169
A.. Find the linear model that best fits this data using regression and enter the model below
(for entry round the linear parameter value to nearest 0.01 and constant parameter to nearest 1)
s = T(p)
B. The squared correlation coefficient rʻ was Select an answer V 0.95
(note: values less than 0.95 MAY mean the model is not appropriate for making predictions)
Now answer these two questions using the UNROUNDED model parameters
C. What does the model predict will be the weekly demand if the price of an ipod touch is $170 ?
(nearest 100)
D, According to the model at what should the price be set in order to have a weekly demand of
170,500 ipod Touches? $
(nearest $1)
Note: In the "real" world Apple sold about 20 million Ipod Touch's from Sept. 2007-Sept. 2009
Answer
Question Help: Message instructor
Submit Question
DEC
étv S
吕0
888
F7
FA

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Find the linear model that best fits this data using regression and enter the model below