DANDANG DOLO...Directions: Read and analyze the given problems below. One of the data/ concepts/values isincorrect. Find the error, then write the correct version. Write your answers on the blanks provided.1. One thousand five hundred (1,500) randomly selected pine trees were tested for traces of theBark Beetle infestation. It was found that 153 of them showed such traces. Test the hypothesis thatmore than 10% of the pine trees have been infested. (Use 5% level of significance.)α = 0.5Ho= 0.10Ha: p > 0.10ERROR:CORRECTED:2. A sample of 100 students were randomly selected from Pinagpala High School and 18 of themsaid they are left-handed. Test the hypothesis that less than 20% of the students are left-handed byusing a = 0.05 as the level of significance.Ho: p = 0.20Ha: p = 0.20.α = 0.5ERROR:It is a one-directional or left-tailed test.CORRECTED:3. Newborn babies are more likely to be boys than girls. A random sample found 13,173 boys wereborn among 25,468 newborn children. The sample proportion of boys was 0.5172. Is this sampleevidence that the birth of boys is more common than the birth of girls in the entire population?Ho: p = 0.5Ha: p > 0.5It is a non-directional or two-tailed test.CORRECTED:ERROR:4. Traditionally, about 70% of students in a Statistics course at ECC are successful. If only 15students in a class of 28 randomly selected students are successful, is there enough evidence at 5%level of significance to say that students of a particular instructor are successful at a rate of less than70%?Ho: p = 0.70 Ha: p < 0.70 P-value = 0.0289Since P-value <, we fail to reject the null hypothesis (Ho).CORRECTED:ERROR:

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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