Chapter 2 exercises web page 23 quantities 11 and 23
For every single description of data in Exercises 1 to 26, discover the W's, name the variables, identify for each changing whether it is use signifies it should be remedied as categorical or quantitative, and for any kind of quantitative variable identify the units in which it was scored ( or perhaps note that these people were not provided). 11. Educational institutions. A State Education Department needs local school districts to keep records in all pupils, recording: grow older, race or ethnicity, times absent, current grade level, standardized check scores in reading and mathematics, and any disabilities or perhaps special educational needs students may possess. Who- Pupils,
What- age, race or racial, days absent, current grade level, standardized test results in examining and mathematics, and any disabilities or exceptional educational demands the student may well have. When- unknown,
Where- State Education Division,
Variables: age -categorical, race or ethnicity-categorical, days absent-quantitative (days), current grade level-categorical, standard test ratings in reading and mathematics- quantitative (not provided), and any problems or special educational requirements the student may have-categorical. twenty-three. Stock market. A web survey of students within a large MBA Statistics class at a business school in the northeastern Usa asked these to report all their total personal investment in the stock market ($), total number of numerous stocks presently held, total invested in mutual funds ($), and the identity of each shared fund through which they have used. The data were used in the aggregate intended for classroom illustrations. Who- MBA Stats College students
What- their total personal investment in the stock market ($), total number of different stocks currently held, total invested in mutual funds ($), and the identity of each shared fund by which they have invested When-unknown
How-reporting for the class
Parameters: their total personal expenditure...