Researchers asked each child in a sample of 411 school-age children if they were more or less likely to purchase a lottery ticket at a store if lottery tickets were visible on the counter. The percentage that said that they were more likely to purchase a ticket by grade level are as follows: Grade Percentage that said they were more likely to purchase 6 32.4 8 46.8 10 74.7 12 83.5 Find the equation of the least-squares line, where y = percentage who said they were more likely to purchase and x = grade. (Give the answer to two decimal places.) =
Researchers asked each child in a sample of 411 school-age children if they were more or less likely to purchase a lottery ticket at a store if lottery tickets were visible on the counter. The percentage that said that they were more likely to purchase a ticket by grade level are as follows: Grade Percentage that said they were more likely to purchase 6 32.4 8 46.8 10 74.7 12 83.5 Find the equation of the least-squares line, where y = percentage who said they were more likely to purchase and x = grade. (Give the answer to two decimal places.) =
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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Researchers asked each child in a sample of 411 school-age children if they were more or less likely to purchase a lottery ticket at a store if lottery tickets were visible on the counter. The percentage that said that they were more likely to purchase a ticket by grade level are as follows:
| Grade | Percentage that said they were more likely to purchase |
| 6 | 32.4 |
| 8 | 46.8 |
| 10 | 74.7 |
| 12 | 83.5 |
Find the equation of the least-squares line, where y = percentage who said they were more likely to purchase and x = grade. (Give the answer to two decimal places.)
=
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