The next three questions (# 27-29) are based on the following scenario. Will Smith can't decide if he is a better rapper or actor. To help him decide, he takes a Rapping Exam (RE) and an Acting Exam (AE). We also know the means and standard deviations of these exams for other aspiring actors and rappers who took them. RE: Will's score = 110; Other Rappers: M = 140, SD = 15 AE: Will's score = 62; Other Actors: M = 50, SD=6 27) Will's Z scores were: A) RE, Z= 2.00; AE Z = 2.00 B) RE, Z= 2.00; AE Z = -2.00 C) RE, Z=-2.00; AE Z = 2.00 D) RE, Z=-2.00; AE Z=-2.00
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Research is a systematic study of a particular topic that contributes to the pool of knowledge. Research can be qualitative or quantitative in nature. While the former uses theories and concepts for a study, the latter relies a lot on tangible data, like statistics and numbers to reject or accept a hypothesis.
Statistics are often used in quantitative research and are considered to be a very important tool. This is so because statistics help summarize large amounts of data into meaningful and manageable information, helps make inferences about a population based on a sample which in turn helps in the generalization of the results, helps in testing hypotheses to assess the relationship between variables, helps test the validity and reliability of the research, and lastly helps make informed decisions based on data.
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