I. Solve the following problems. Show all pertinent solutions. Determine the sample size of each of the following given the population size with the corresponding margin of error. 1. a. N = 350 ; e = 10% b. N = 1,000 ; e 1% %3D N = 5,600 ; e = 5% с. %3D d. N = 10,500 ; e 5% %3D A researcher is conducting an investigation regarding the factors affecting the level of efficiency of the municipal mayors of the Philippines. If there are 700 municipal mayors throughout the country, then determine the sample size he should use if he wants to have a margin of error of 5%. 2. A psychology student is conducting an inquiry regarding the reaction of the stu- dents from the College of Engineering of a certain university to the recent tuition fee increase. If there are 3,530 engineering students and the researcher wants to allow a margin of error of 1%, then determine the sample size that should be taken as respondents. 3.

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.