Gerardo is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of0-100). His data is displayed in the table and graph below.Hours10+9876321Brightness Level (x) 16Hours (y)10 20 3037316.7 5.8 5.2Submit Question-1What is the residual for the point (58,7.1)?hoursRejected Questions4050Brightness Level37460 70445.980587.1775.1994.290 100 110MathStatistics

Given that X Y 16 6.7 31 5.8 37 5.2 37 4 44 5.9 58 7.1 77 5.1 99 4.2

Answered: Gerardo 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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#7 The following is a table of the average weekly study time (x) and the score on a MAT 1272 exam (y) for 7 students: Time Exam Score 6. 87 2.5 75 50 63 92 7. 100 5.5 87 e (a) Does the plot show a positive or negative relationship between weekly studytime and the score on the MAT 1272 exam? Explain. (b) Predict, to the nearest whole number, the grade of a student whose average weekly study time is 4 hours?
6.6 You estimated a regression with the following output. Source | SS df MS Number of obs = 209 -------------+---------------------------------- F(1, 207) = 92470.91 Model | 622579639 1 622579639 Prob > F = 0.0000 Residual | 1393670.56 207 6732.70804 R-squared = 0.9978 -------------+---------------------------------- Adj R-squared = 0.9978 Total | 623973310 208 2999871.68 Root MSE = 82.053 ------------------------------------------------------------------------------ Y | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- X | 34.2537 .1126432 304.09 0.000 34.03163 34.47578 _cons | 8.806569 10.31802 0.85 0.394 -11.5353 29.14844…
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SPC Bachelors & Associate Deg X Test: Test 1 Review Question list ← → C mylab.pearson.com/Student/PlayerTest.aspx?testid=251861855 MAT1033, Summer 2023 Online Class:930 (0620) Question 10 Question 11 O Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Sign In Question 18 K X SPC Dashboard - St. Petersburg X Slope = (Simplify your answer. Type an integer or a fraction.) y-intercept = (Type an ordered pair.) 4 mic Step 1: Barnes & Noble Cc X Find the slope and y-intercept of the line whose graph is shown to the right. Then use these to write an equation of the line. Pearson MyLab and Maste X ... Question 19 of 20 The equation of the line is (Simplify your answer. Type your answer in slope-intercept form. Use integers or fractions for any numbers in the equation.) P Test 1 Review
3. You estimated a regression with the following output. Source | SS df MS Number of obs = 400 -------------+---------------------------------- F(1, 398) = 716.92 Model | 22118655.1 1 22118655.1 Prob > F = 0.0000 Residual | 12279166.2 398 30852.1764 R-squared = 0.6430 -------------+---------------------------------- Adj R-squared = 0.6421 Total | 34397821.3 399 86210.0784 Root MSE = 175.65 ------------------------------------------------------------------------------ Y | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- X | 5.299576 .1979268 26.78 0.000 4.910464 5.688689 _cons | 67.86719 18.3827 3.69 0.000 31.72786 104.0065…
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A patient is classified as having gestational diabetes if their average glucose level is above 140 milligrams per deciliter (mg/dl) one hour after a sugary drink is ingested. Rebecca's doctor is concerned that she may suffer from gestational diabetes. There is variation both in the actual glucose level and in the blood test that measures the level. Rebecca's measured glucose level one hour after ingesting the sugary drink varies according to the Normal distribution with μ=140+5 mg/dl and σ=5+1 mg/dl. Using the Central Limit Theorem, determine the probability of Rebecca being diagnosed with gestational diabetes if her glucose level is measured: Once? n=5+2 times n=5+4 times Comment on the relationship between the probabilities observed in (a), (b), and (c). Explain, using concepts from lecture why this occurs and what it means in context.
please give me answer in relatable
The correlation between X and Y is r = 0.35. If we doublw each X value, decrease each Y by 0.20, and interchange the variables (put X on the Y-axis and vice versa), the new correlation is?
Can you please help with 4.30 sulfur, the ocean and the sun? Only part A which is make a scatter plot that shows how DMS responds to SRD.
Why this type of plot is used in analysing regression models
A group of researchers studied the effect of acid rain on wildlife and collected n = 12 samples from streams in different States. They recorded the pH (X) of the water (i.e. units above pH 7), and the BCI, a measure of biological diversity (Y). The data obtained is summarized below. DATA: Observation 1 2 3 4 5 6 7 8 9 10 11 12 pH above 7 (X) 0.65 0.50 0.93 0.86 1.02 0.94 1.16 1.24 1.30 1.45 1.85 1.89 Units of BCI (Y) 14.5 22.9 15.8 38.3 18.9 20.0 21.4 23.8 23.6 25.2 27.3 29.4 Find the correlation coefficient between pH and BCI (round to the nearest hundredth; place your answer in the box below)

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