Solve the problem.A olothes shop owner tries to predict the winter oolection sales by displaying the coats sales (in dollars) and the outside temperature (in degrees Fahrenheit) on the following scatterplot. He calculates that the correlation between coats sales andemperature is-0.801 Suppose the variable temperature is recorded in degrees Celsius rather than in degrees Fahrenheit. What will be the correlation?6-:-2-30 40 50 60 70Temperature (F)20OA -0.801OB. -0.801 F/$OC. 18.197 F-$O D. -0.801 F•$OE. 0.801

The value of correlation for the variables coat sales and temperature is -0.801. The variable…

Answered: Solve the problem. A olothes shop owner…

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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Statistics teacher realize that his studentS keep using cell phones during the class. Then he did some research and found out that people use cell phones for 7.2 hours per day on average in turkey, and usage time variability around that average is 2.0449 Then he decides to givean assignment of reading books as an alternative of cell phone usage in exchange of 50 extra credit to their statistics exam. After the exam, He collected the data of cell phone usage time from his 127 students and calculated that average cell phone usage time drops to 6.8 hours per day. Under the assumption that probability of uncontrolled factors leading you the wrong statistical decision is five percent, conduct the statistical analysis to decide whether decrease in the cell phone usage time is real or it happens just because of the random chance and interpret the results.
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