**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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