Question Set 1: Internet Usage

Access to high-speed internet is limited in many rural areas in central Pennsylvania. A rural internet company is looking to build towers and expand access to one of these areas. However, in order to justify the expense and start building, at least 85% of the adult residents in the area need to be internet-users.

A research firm working for the company is going to study if the percentage of adult residents in this area who use the internet is greater than 85%.

Question Set 1_E The most common alpha level is 0.05. When is a higher alpha level (e.g. 0.10) typically used? Hint: See https://online.stat.psu.edu/stat200/lesson/6/6.2 Edit View Insert Format Tools Table 12pt ~ Paragraph B I UA V Q V TV : W FEB 21Question Set 1_F When is a smaller alpha level (e.g. 0.01) typically used? Edit View Insert Format Tools Table 12pt ~ Paragraph B I U A Q V T V : W FEB 21State the null and alternative hypotheses for the scenario above. Ho: (Hint: The sign for Ho is always =) Ha: (Hint: The sign for Ha is , or #) Edit View Insert Format Tools Table 12pt v Paragraph BIUA 2 V T V . . .Question Set 1 D Suppose we compute a p-value and conclude that the population proportion of adult residents in this area who use the internet is greater than 0.85 (i.e. 85%), but in fact it is not greater than 0.85. Is this an example of a Type I error or a Type II error? Explain your answer. Edit View Insert Format Tools Table 12pt ~ Paragraph BIUA T2