File SizeS76.50145.85128.60+- test3. Which of the following is the estimate (from this sample) of the standard deviation of thesampling distribution of b, the slope of the sample regression line for this relationship? Chap(a) 773.4 (b)28.60 (e)R-Sq = 39.4%R-Sq (adj)33.9%773.4√13.145.851(c)(d)S=minitab calculation by 5 since there is4. Which of the following is the best interpretation of the quantity S = 145.851?28.60√13no SigmaTrstandard deviation Use the following for questions 3-5.A statistically-minded English teacher wonders if she can predict the lengths of essays that herrandom sample of 13 student papers (all produced by the same word-processing software)students submit on the basis of how large the computer files for the essays are. She selects aregression analysis of her data is given below. Assume all conditions for inference for slopeand compares file size (in kilobytes or KB) to the word count for each. A computerhave been met.PredictorConstantFile SizeTerence for QuaSCoefSE Coef-1450.376.50773.428.60145.851 R-Sq= 39.4%TP0.088-1.882.67 0.0227R-Sq (adj)33.9%linear regres+- test

Here dependent variable (y) = lengths of essay Independent variable (x) = file size Sample size (n)…

Answered: 3. Which of the following is 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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Which of the following procedures is the most appropriate for investigating whe between gender and the number of friends a person has on a social media Web site? x (A) A matched-pairs t-test for a mean difference (B) A two-sample t-test for the difference between means X (C) A r-test for the slope of the regression line (D) A chi-square goodness-of-fit test 38 (E) A chi-square test of independence 6. holo A test of the hypotheses Ho: = 0 versus H₂> 0 was conducted using a sample of size 7. The test statistic was t = 1.935. Which of the following is closest to the p-value of the test? (A) 0.0125 (B) 0.0265 (C))0.0471 (B) 0.0506 (E) 0.1012 plan 1727 (EEA) 7. From a random sample of 50 people, sitting pulse rates and standing pulse rates were measured for each person. A coin was flipped to determine whether the sitting or the standing pulse rate would be measured first. Let sitting represent the mean sitting pulse rate in the population, standing represent the mean standing pulse rate in…
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116). With 77.4 and y 77.2, you You run a regression analysis on a bivariate set of data (n obtain the regression equation y -1.848z+56.533 0.092. You want to predict what value (on average) for the with a correlation coefficient of r= response variable will be obtained from a value of 180 as the explanatory variable. What is the predicted response value? %3D (Report answer accurate to one decimal place.)
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Q1. A psychologist conducted a study on the relationship between introversion and shyness. The values are results for scales of introversion and shyness. High positive scores on each scale indicate high introversion or shyness; and high negative scores indicate low introversion or shyness. Data collected from 10 people as follows: Introversion 4 -7 -1 0 6 7 -4 -9 -5 8 Shyness 11 -7 -1 -3 0 7 -1 -8 -1 5 a) Compute the correlation coefficient relating introversion and shyness scores. b) Find the regression equation which predicts introversion from shyness. c) What introversion score would you predict from a shyness score of 7?

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