A researcher is exploring the relationship of academic performance of students in an online class toseveral factors listed below. The digital literacy scores were measured using a digital literacy test. Thespeed of internet connection is measured in megabyte per second (mbps). Family stress is measuredusing a 10-point scale test. A higher number means higher stress.Factors Affecting Academic Performance of Students in an Online ClassSpeed ofAcademicperformanceDigitalLiteracyScoreFamilyStressInternetConnectionScore(mbps)3ID8791486899.8280747677108.85911256.938978380296.8481308.88861541076852210The variable that is used to predict changes in another variable is known as theA. nuisance variable.B. predictor variable.C. criterion variable.D. first variable.

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Answered: A researcher is exploring 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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The blue catfish (Ictalurus Furcatus) is the largest species of North American catfish. The current world record stands at 143 pounds, which was caught in the John H. Kerr Reservoir (Bugg's Island Lake) located in Virginia. According to American Expedition, the average weight of a blue catfish is between 20 to 40 pounds. Given that the largest blue catfish ever caught was at the John H. Kerr Reservoir, you believe that the mean weight of the fish in this reservoir is greater than 40 pounds. Use the data below, which represents the summary statistics for 42 blue catfish caught at this reservoir, and a 0.05 significance level to test the claim that the mean weight of the fish in the John H. Kerr Reservoir is greater than 40 pounds. n=42; ¯x=40.63 pounds; s=3.49 pounds a) Identify the null and alternative hypotheses?H0: H1: c) Identify the appropriate significance level.d) Calculate your test statistic. Write the result below, and be sure to round your final answer to two…
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