LESSON: TEST OF HYPOTHESIS

ACTIVITY 1. Read each situation carefully and fill in the space provided with appropriate information. Happy hypothesizing.

1. A student researcher claims that fewer than 8% of the Junior High School completers will enroll in private Senior High Schools. To test this claim, he collected sufficient samples randomly and found out that 85 out of 380 Junior High School completers are planning to enroll in private Senior High Schools. Claim: Parameter: Symbol for parameter: Ho and Ha complementary pair: Hypotheses in words: Ho: Ha: Hypotheses in symbols: Ho: Ha:2. A telecommunications company claims that senior high school students spend an average of 20 Php a day for their cellphone loads. Do you agree with the claim? Claim: Parameter: Symbol for parameter: Ho and He complementary pair: Hypotheses in words: Ho: Ha: Hypotheses in symbols: Ho: Ha: 3. The Senior High School researchers claim that more than 20% of Senior High School male students have tried smoking cigarette. After collecting 150 random samples, theyr found that t] of them have tried smoking cigarette. Claim: Parameter: Symbol for parameter: Ho and Ha complementary pair: Hypotheses in words: Ha: Ha: Hypotheses in Symbols: Ho: Ha: Activity 2. Directions:lneachsituationoelowstatewhenmeen'orwiltbecommittedandgiye its possibleconsequences. 1. After studying open senior high school. Mary is thinking whether or not to pursueadegreeiniricolIege.Shewastoldthatilshegraduateswithadegree with a degree in college. a life of fullment and happiness awaits her. Assist Mary in making herdecision. 2. An aidine company does regular quality control checks on airplanes. One of them is tire inspection because tires are sensitive to the heat produced when the airplane runs through the runway. Since its operahon. the company uses a particular type of tire which is guaranteed to perform even at a maximum surface temperature of 1D?C. However. the tires cannot be used and need to be replaced when surface temperature exceeds a mean of 107C. Help the company decide whether or not to do a complete tirereplacement. 3. Aldenisexclusiyelydatingiutaine.HeremembersmatontheirrstdateMaine told him that her birthday was this month. However, he forgot the exact date. Ashamed to admit that he did not remember, he decides to use the hypothesis testing to make an educated guess that today is Maine's birthday. Help Alden doit