For numbers 4-6. Identify whether the problem is a two-tailed test or one-tailed test (left-tailed test, right-tailed test). Then, formulate the null and alternative hypotheses. 4. The principal of...

pls answer number 4. On the hypothesis pls do in mathematical words and numbers, thank you!

Extracted text: For numbers 4-6. Identify whether the problem is a two-tailed test or one-tailed test (left-tailed test, right-tailed test). Then, formulate the null and alternative hypotheses. 4. The principal of San Miguel National High School claims that the students in her school have intelligence that is above average. Suppose that the average IQ scores for a high school student is 115. State the null and alternative hypothesis the principal is having in mind. 5. An analyst wants to know if the tourists in Palawan decrease due to Covid-19 pandemic for the last 3 months. Data from prior to the pandemic shows that there is an approximate of a 1,000 of foreign visitors in Palawan in just 3 months. What are the null and alternative hypotheses of the analyst?