STATISTICS AND PROBABILITY

Directions: Choose the correct answer inside the parenthesis. Underline your answer. 1. 2. 3. A teacher wants to know if listening to popular music affects the performance of the pupils. (directional, non-directional} The principal claims that more than 30% of Grade 4 students are in favor of staying in the playground after classes. (directional, non-directional) There is enough evidence to conclude that the percentage of students who are in favor of the new uniform is different from 85%. The statement is (directional, non-directional) Directions: Fill in each blank with the correct word or phrase to complete the statement. .01!\"pr F\" is a mathematical model used in decision-making. is a graphical model appropriate for decision-making. The is the symbol used to represent the critical value. The separates the rejection region from the non-rejection region. The basis for the critical or the rejection region dictated by the alternative hypothesis is called The range of the values of the test value which indicates that there is a significant difference and that the null hypothesis (Ho) should be rejected is called The is the range of the values of the test value which indicates that the difference was statistically insignicant and that we failed to reject the null hypothesis (Ho). Directions: Answer the following questions. 1. When the condence level is 99%, o is _. 2. What is the alternative hypothesis of the statement below? \"Less than 35% of the students are uent Filipino language speakers.\" 3 What is the alternative hypothesis for the following statement? \"More than 65% of the students are uent Filipino language speakers." 4. What is the alternative hypothesis (in notation) of the following statement? \"Less than 4% of senior high school students take Statistics." 5. A farmer believes that using organic fertilizer on his plants will yield a greater income. His income increased by 20% from last year. State the alternative hypothesis in symbols