Before you attempt this question, on your graphing calculator hit MODE and turn STATDIAGNOSTICS on! (Orhit 2nd-0 and find Diagnosticon in the catalog.)Juwan is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scaleof 0-100). His data is displayed in the table and graph below.How'sBrightness Level (x)Hours (y)20765A5N137 37 39 42 61 64 66 764.3 4.5 4.2 5.6 3.3 4.2 2.7 3.610 20 30 40 50 60 70 80 90 100 11Brightness Levela) Find the equation for the line of best fit. Keep at least 4 decimals for each parameter in the equation.(You should begin by typing y=)b) Interpret the slope in context.●Juwan should expect -0.0366 brightness level per hour.Juwan should expect -0.0366 hours per brightness level.c) What does the equation predict for the number of hours the phone will last at a brightness level of 42?hoursd) Calculate the correlation coefficient r.

The data is defined below as follows: Let X represents the independent variable as the Brightness…

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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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An astonishing array of devices and tools allow humans to measure just about everything,including calculating travel distances, determining a board’s length in construction, ascertainingair and water temperatures, analyzing wind speed, gauging the pressure inside a tire andmeasuring the distance around the globe. From height and depth, to width and breadth, there’sa measurement tool for most everything.Choose ONE (1) instrument/device that available in your house. State the function of theinstrument/device. GivesTEN (10)measurement that can be produced by the instrument/device.Then calculate the following:1) Arithmetic mean2) Deviation of each reading3) Average Deviation4) Standard Deviation5) Calculate the precision of the 4th measurement.6) Which is the most accurate measurement?
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The following equation describes the relationship between output and labor input at a sample of work stations in a manufacturing plant ŷ = 2.35+2.20X. Suppose, for a selected workstation, the labor input is 5, the predicted output is?

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