Freshcrim specializes in the sales of ice cream from street trolleys in the centers of many cities. Some factorsthat may determine the sales of ice cream are: the atmospheric temperature, the location of the trolley, therain and the humidity. However, there exists a hypothesis that the sales of ice cream during the summer aresignificantly correlated only with atmospheric temperature. They defined two variables: X : the meanatmospheric temperature and Y : the sales. They considered the month of July of this year in a randomsample of 30 cities. For each city in the sample, let x be the mean temperature in degrees Fahrenheit and ythe mean sales per day in dollars per 100,000 residents. The data are given below. A regression model wasrun, with Y as the dependent variable and X as the independent variable. Consider the following values of the independent variable: x=88 x 98 x=90 Which of thefollowing is true?x=98(1)(2)(3)(5)ŷproduces the value of with the smallest error of prediction andwith the biggest error of prediction..ŷvalue of*=88produces the value of with the smallest error of prediction andDvalue ofx=88value ofx=88with the smallest error of prediction andx=90value of with the biggest error of prediction.x=90produces the value ofvalue of with the biggest error of prediction.x=90ûx=88produces the value of with the smallest error of prediction and produces theŷwith the biggest error of prediction.produces the value of with the smallest error of prediction andwith the biggest error of prediction.x=98produces thex=98produces theproduces theproduces the City1234567891011×›y92.8 37.6284.073.874.583.078.482.075.139.1885.045.5725.5331.6230.6691.5 44.8334.4533.4845.6371.3 38.84City1213141516171819202122X80.0 33.0793.0 46.6497.492.03281.0 28.2591.080.341.4081.5 45.2473.236.2638.3841.5541.6190.0 35.3485.2 48.04City232425262728293031323396.688.087.8 35.2098.377.090.694.499.295.0y86.051.1148.9140.4745.5449.8138.7946.7153.0134.2372.6 33.03

Given information: X: The mean atmospheric temperature. Y: The sales. Where Y is the dependent…

Answered: Consider the following values of the…

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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Freshcrim specializes in the sales of ice cream from street trolleys in the centers of many cities. Some factors
that may determine the sales of ice cream are: the atmospheric temperature, the location of the trolley, the
rain and the humidity. However, there exists a hypothesis that the sales of ice cream during the summer are
significantly correlated only with atmospheric temperature. They defined two variables: X : the mean
atmospheric temperature and Y : the sales. They considered the month of July of this year in a random
sample of 30 cities. For each city in the sample, let x be the mean temperature in degrees Fahrenheit and y
the mean sales per day in dollars per 100,000 residents. The data are given below. A regression model was
run, with Y as the dependent variable and X as the independent variable.