22.

In 2021, 70% of Gnagovian households had an internet connection. A sample of 80 households taken in 2022, showed that 75% had an internet connection. We are interested in determining whether or not there has been a significant increase in the percentage of the Gnagovian households that have internet connections. The null hypothesis is to be tested at 95% confidence.

What is the correct conclusion?

A. We cannot accept or reject the null hypothesis, we need to know the standard deviation in order to solve the problem

B. We reject the null hypothesis, and conclude that there is not a statistically significant increase in the percentage of households that have internet connections

C. We fail to reject the null hypothesis, and conclude that there is a statistically significant increase in the percentage of households that have internet connections

D. We accept the null hypothesis, and conclude that there is not a statistically significant increase in the percentage of households that have internet connections

E. We fail to reject the null hypothesis, and conclude that there is not a statistically significant increase in the percentage of households that have internet connections

F. We cannot accept or reject the null hypothesis, we need to increase the sample size of the study

G. We accept the null hypothesis, and conclude that there is a statistically significant increase in the percentage of households that have internet connections

H. We reject the null hypothesis, and conclude that there is a statistically significant increase in the percentage of households that have internet connections