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mt? . ForumTail Directions: Formulate the null and alternative hypotheses. Identify whether it is onetailed or twotailed. Ifthe hypothesis is one tailed. identify its direclion whether it is left or right. Write your answer on a separate sheet of paper. 1. A study claims that the mean survival period for certain cancer patients treated immediately.r with chemotherapy and radiation is 24 months. Hg: Ha: tailed test 2. The average preschool cost for tuition fees last year was P 15,5013. The following year, 20 schools had a mean of? 13, 100 and standard deviation of F' 2,500. Hg: Ha: tailed test 3. A magazine reports that a typical shopper spends less than 10 minutes in line wailing to check: out. A sample of 3D shoppers at the DM Supermarket showed mean of 9.5 minutes with standard deviation of 2.? minutes. Hg: Ha: tai1ed test 4. The principal of Mabundok High School claims that the students in his school have above average intelligence. A random sample of 3D students' IQ scores have a mean score of 113. The mean populatiole is l with a standard deviation of 15. Is there an evidence to support his claim? Ha: Ha: tai1ed test 5. The owner of ETD manufacturer claims that their batteries last an average of at most 350 hours under normal use. A researcher randomly selected 2D batteries from the production line and tested th-. The tested batteries had a mean life span of STD hours with a standard deviation of 5D hours. Ha: Ha: tail.ed test Complete the following statements. 1. A statement about a parameter and deals with evaluating the value of parameter is called 2. The two kinds of hypothesis are and 3. To formulate a hypothesis, the steps are: a. b. e. d. 4. The test of hypothesis can be if the alternative hypothesis uses a-E symbol or if it uses