A random sample of 175 students was selected from a large high school. They were each asked their current grade level and whether they have a driver's license. The responses are displayed in the table. Grade Level 9th 10th 11th 12th Yes 1 5 21 20 48 Driver's License? No 28 42 10 The principal would like to know if these data provide convincing evidence of a relationship between grade and having a driver's license in the population of all students in this school. The random and 10% conditions are met. Is the Large Counts condition met? Yes, the smallest expected count is 12.43, so all expected counts are at least 5. O Yes, the smallest expected count is 16.57, so all expected counts are at least 5. O No, the smallest expected count is 1.87, so the expected counts are not all at least 5. O No, the smallest expected count is 3.45, so the expected counts are not all at least 5.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question

4

A random sample of 175 students was selected from a large high school. They were each asked their current grade
level and whether they have a driver's license. The responses are displayed in the table.
Grade Level
9th
10th
11th
12th
Yes
1
5
21
48
Driver's License?
No
28
42
20
10
The principal would like to know if these data provide convincing evidence of a relationship between grade and
having a driver's license in the population of all students in this school. The random and 10% conditions are met. Is
the Large Counts condition met?
O Yes, the smallest expected count is 12.43, so all expected counts are at least 5.
O Yes, the smallest expected count is 16.57, so all expected counts are at least 5.
No, the smallest expected count is 1.87, so the expected counts are not all at least 5.
O No, the smallest expected count is 3.45, so the expected counts are not all at least 5.
Transcribed Image Text:A random sample of 175 students was selected from a large high school. They were each asked their current grade level and whether they have a driver's license. The responses are displayed in the table. Grade Level 9th 10th 11th 12th Yes 1 5 21 48 Driver's License? No 28 42 20 10 The principal would like to know if these data provide convincing evidence of a relationship between grade and having a driver's license in the population of all students in this school. The random and 10% conditions are met. Is the Large Counts condition met? O Yes, the smallest expected count is 12.43, so all expected counts are at least 5. O Yes, the smallest expected count is 16.57, so all expected counts are at least 5. No, the smallest expected count is 1.87, so the expected counts are not all at least 5. O No, the smallest expected count is 3.45, so the expected counts are not all at least 5.
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