An undergraduate was interested in whether listening to music on a phone or mp3

Question

An undergraduate was interested in whether listening to music on a phone or mp3 player lessens your attention to your surroundings They sat on the Prairie Line Trail for an hour on a Monday and noted whether each person had earphones on and judged whether they noticed other students in their path. The sampling method used was: A Convenience B Simple random C. Systematic D. Stratified E. Cluster The study conducted is: A observational B experiment For questions 9-12 select A for TRUE and B for FALSE A population parameter is calculated from data gathered using a sample. A sample statistic gives the same value as a population parameter. When the entire population is measured we have taken a census. Population parameters are usually indicated by Greek letter's. A statistics professor (Professor A) heard about a colleague (Professor B) who was employing a new teaching technique and was wondering if they might benefit from using it in their own classroom Professor B had been using the technique for the last five years, and in that time Professor B was teaching a different section of the same class Assume the population of Interest is all students who took that class over the last five years Professor A gathered the class lists of all of these students and divided the lists into two groups -one group took the class with the new technique from Professor B, one group took the class with the standard technique from Professor A. Within each group Professor A randomly sampled 20 students They then compared the scores of each group on a standard statistical exam. This study is: A cross-sectional B retrospective C longitudinal For questions 14-23 a dataset is described. For each identify the kind of data and the level of measurement. Electricians are asked whether replacing a circuit breaker is very easy. easy, difficult, or very difficult. and these alternatives are coded 1, 2, 3, 4 These data are: A Quantitative discrete B. Quantitative continuous C. Qualitative (categorical) The level of measurement for these data is: A. Nominal B Ordinal C Interval D Ratio Patients in a hospital are asked about their religious beliefs. Each patient was assigned a value of 1, 2, 3, 4, 5, 6, or 7 depending on if they answered Muslim, Christian, Jewish, Buddhist, Hindu, other, or atheist, respectively. These data are: A. Quantitative discrete. B Quantitative continuous C. Qualitative (categorical)

Explanation / Answer

Q7. Convenience sampling

Q8. observational study

Q9 False

Q10. TRue

Q11.True

Q12 True

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