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17. do students at various universities differ in how sociable they are? twenty-five stude
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17. do students at various universities differ in how sociable they are? twenty-five students were randomly selected from
each of three universities in a region and were asked to report on the amount of time they spent socializing each day with
other students. the result for university x was a mean of 5 hours and an estimated population variance of 2 hours for
university y, m =4, ssup2 =1.5 and for university z, m=6, s sup2 = 2.5. what should you conclude? use the .05 level. (a) use
the steps of hypothesis testing, (b) figure the effect size for the study and (c) explain your answers to parts (a) and (b)
to someone who has never had a course in statistics.
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