Sampling Method

I created an online survey using Google Forms. I typed in the question and input the answers. After that, I created a shortened link for students to go to. I then sent out a letter with the link asking english teachers to , at their convenience, instruct their students to go to the link and answer the question. I watched as the page filled up with answers and when the responses stopped coming in, I closed the survey. I had a non-response bias in which students might not have wanted to answer the question or they were simply just too lazy to go to the link.

Hypothesis Test

1.       P= the proportion of students who use Google Chrome.

2.       H₀: P = 0.75

3.       H_α: P > 0.75

4.       α = 0.05

5.      

6.       Simple random sample. The sample size is less than 10% of the population: 84/1389 = 0.06. The sample size is large enough so that I can assume normality with the central limit theorem: 84(.25) = 21 > 10     84(.75) = 63 > 10.

7.       Z = 0

8.       P = 0.558

9.       We fail to reject the null hypothesis at the alpha level of significance. Therefore there is not enough evidence to suggest that the proportion of students who use Google Chrome exceeds .75.