Frank 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.Brightness Level (x)Hours (y)374.7394.6425.5505.9643.8711.8823.1932.36.8.716.5-10 20 30 40 50 60 70 80 90 100 ll-14Brightness Levela) Find the equation for the line of best fit. Keep at least 3 decimals for each parameter in the equation.b) Interpret the slope in context.O Frank should expect -0.0566 hours per brightness level.O Frank should expect -0.0566 brightness level per hour.c) What does the equation predict for the number of hours the phone will last at a brightness level of 55?hours

Given data : Sr no X Y 1 37 4.7 2 39 4.6 3 42 5.5 4 50 5.9 5 64 3.8 6 71 1.8…

Answered: Frank is investigating how long his…

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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VII. A data below by showing positive linear relation between the grades versus no. of days present. is a useful graph for analyzing the relationship between two variables. Illustrate the No. of Days Present 23 Grades 89 91 22 95 24 89 22 90 24 85 26 95 27 87 25 83 26 92 29 90 30 80 31
Use this data to answer #4-5: The box plots represent a comparison of the annual salaries of a group of opera and a group of country western singers respectively. Opera Courtry Western Identify the range and five-number summary for the salaries of the opera singers. Don't use the comma to separate the digits (40000 is Okay; 40,000 is not Okay, etc.) Range $ Xmin = $ 20000 Q =$ Median = $ Q3= $ Xmax $ 100000 Tina is a country western singer whose annual salary is twice the median salary of the group of country western singers. Sylvia is the highest paid among the group of opera singers. Which of the following statements is true? Select one: O a. Tina and Sylvia have the same annual salary. O b. Tina's annual salary is higher than Sylvia's. Oc. Sylvia's annual salary is higher than Tina's. O d. The information provided is not sufficient to determine which of the two salaries is higher. 000'001S 000'06s 000 0es 000 02S 000'0es 000'oss 000'0 000 0ES 000'ozs
An economist want to determine the relation between one’s FICO score, x, and the interest rate of a 36-month auto loan, y. The given data represent the interest rate (in percent) a bank would offer on a 36-month auto load for various FICO scores. Credit Score;x Interest Rate (percent);y 545 18.982 595 17.967 640 12.218 675 8.612 705 6.68 750 5.15 Find the least-squares regression line treating the FICO score as the explanatory variable and the interest rate as the response variable. Predict the interest rate a person would pay if their FICO score were the median score of 723.
Can you please do this on excel and give me the step by step solution? Thanks,.
The data listed below represents the number of customers entering a food store by the number of hours the store was opened on a particular day. Hours Opened Customers 0 0 2 1 4 3 6 5 8 2 10 11 12 15 Create the corresponding line graph to represent this data below.
Don't Hand writing in solution.
The table below lists the percent of a country's population that is foreign-born for selected years. Year 1930 1940 1950 6.7 1960 1970 5.3 1980 1990 2000 2008 Percent 11.4 8.5 4.6 6.5 8.1 10.2 12.3 Answer parts a through e. (a) Plot the data. Let x =0 correspond to the year 1930, x= 10 correspond to 1940, and so on. Choose the correct graph below. OA. B. Oc. OD. Q (0, 80,101 by (0,15,3] (b) Find a quadratic function f(x) = a(x-h) +k that models the data. Use (40,4.6) as the vertex and (20,6.7) as the other point to determine a. f(x) = (Use integers or decimals for any numbers in the expression. Type an integer or decimal rounded to four decimal places as needed.)
Can someone please answer this and tell me how to create a scatter plot in MS excel
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An aerabk exercise instructor remembars the data givan in the follawing table, which shows the recommanded maximum exercise haart rates for individuals of the given ages. (A graphing calculator is recommended.) Age (x years) 20 40 60 Maximum heart rate 172 155 138 (y bente per minute) (a) Find the lincar corelation coefficient for the deta. (Rcund your answer to two decimal places.) (b) What is the signiticance of the value found in part (a)? O The slope of the regression is about half of what the expected value is. O The graph of the regression points passes through nene of the data points. * The graph of the regression points passes through all three data peints. O One of the data points is the y-intercept. O The linear correlation cooficient should always be positive. (c) Find the equetion of the leest-squeres regression line. (Round your answers to two decimal pleces.) (d) Use the equation of the least-squares line from part (c] te predict the maximum cxercise heart rate fer a…
#2 If you use software to assist with this calculation, indicate the function(s) that you used.
We want to predict the selling price of a house in Newburg Park, Florida, based on the distance the house lies from the beach. Suppose that we're given the data in the table below. These data detail the distance from the beach (x, in miles) and the selling price (y, in thousands of dollars) for each of a sample of fifteen homes sold in Newburg Park in the past year. The data are plotted in the scatter plot in Figure 1. Also given is the product of the distance from the beach and the house price for each of the fifteen houses. (These products, written in the column labelled "xy", may aid in calculations.) Distance from the beach, x (in miles) Selling price, y (in thousands of dollars) xy 5.0 270.1 1350.5 11.5 205.9 2367.85 5.9 309.4 1825.46 12.2 200.6 2447.32 2.6 307.1 798.46 5.9 266.0 1569.4 8.3 297.3 2467.59 18.3 224.2 4102.86 6.5 242.4 1575.6 12.1 192.6 2330.46 11.6 229.4 2661.04 9.5 230.9 2193.55 10.1 277.0 2797.7 13.5 270.8 3655.8 6.2…

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