Question

An educator has the opinion that the grades of high school students depends upon the

time spent listening to the music. To test assumption, he has randomly given, 400

students questionnaire, he asked two questions:

a) How many hours per week do you listen to music?

b) What is the average grade for all the class?

At 5% significance level, test whether grades and time spent to listening to music

dependent or independent each other?

Hrs Spend

Listening to Music

A B C D E Total

< 5 Hrs 13 10 11 16 5 55

5-10 Hrs 20 27 27 19 2 95

11-20 Hrs 9 27 71 16 32 155

>20 Hrs 8 11 41 24 11 95

Total 50 75 150 75 50 400​

Answer 1

Answer:

pls mark me as brainliest

Explanation:

then ans