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A study involved a random sample of eight people. Each subject spent one week sleeping a prescribed number of hours each night and then at the end of a week, each subject participated in a memory test. The number of hours each subject slept each night of the week, and that subject's score on the memory test at the end of the week are found in the table below. x Nightly Sleep Hours 3 3 5 5 8 7 10 9 y: Test Score 20 22 24 27 29 26 25 22 a) Plot the data using technology, then choose the best description below regarding correlation. O quadratic correlation with a negative leading coefficient O quadratic correlation with a positive leading coefficient

A study involved a random sample of eight people. Each subject spent one week sleeping a prescribed number of hours each night and then at the end of a week, each subject participated in a memory test. The number of hours each subject slept each night of the week, and that subject's score on the memory test at the end of the week are found in the table below. x Nightly Sleep Hours 3 3 5 5 8 7 10 9 y: Test Score 20 22 24 27 29 26 25 22 a) Plot the data using technology, then choose the best description below regarding correlation. O quadratic correlation with a negative leading coefficient O quadratic correlation with a positive leading coefficient

MATLAB: An Introduction with Applications
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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b) Use technology to perform quadratic regression to obtain a parabola of "best fit" in the form y = ax² +bx+c. Enter the coefficients below. Round each to three decimal places. b= c) Using the regression curve, predict the score someone might receive if they slept 11 hours each night of the week. Round to two decimal places. Score
Transcribed Image Text:b) Use technology to perform quadratic regression to obtain a parabola of "best fit" in the form y = ax² +bx+c. Enter the coefficients below. Round each to three decimal places. b= c) Using the regression curve, predict the score someone might receive if they slept 11 hours each night of the week. Round to two decimal places. Score
A study involved a random sample of eight people. Each subject spent one week sleeping a prescribed number of hours each night and then at the end of a week, each subject participated in a memory test. The number of hours each subject slept each night of the week, and that subject's score on the memory test at the end of the week are found in the table below. Hours Sleep Hours y: Test Score 20 22 24 27 29 26 25 22 x Nightly Sleep 3 3 5 5 8 7 10 9 a) Plot the data using technology, then choose the best description below regarding correlation. O quadratic correlation with a negative leading coefficient O quadratic correlation with a positive leading coefficient
Transcribed Image Text:A study involved a random sample of eight people. Each subject spent one week sleeping a prescribed number of hours each night and then at the end of a week, each subject participated in a memory test. The number of hours each subject slept each night of the week, and that subject's score on the memory test at the end of the week are found in the table below. Hours Sleep Hours y: Test Score 20 22 24 27 29 26 25 22 x Nightly Sleep 3 3 5 5 8 7 10 9 a) Plot the data using technology, then choose the best description below regarding correlation. O quadratic correlation with a negative leading coefficient O quadratic correlation with a positive leading coefficient
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