Nuz cevaplanmade 25,00 Üzerinden işaretlenmiş Soruyu isaretle
A university conducts a study about the extension of library working hours. From a random
sample of 300 freshmen, 180 of them indicated that they would use the library more if the
hours were extended. In an independent random sample of 200 sophomores, 125 of them
responded that they would use the library more if the hours were extended. Estimate the
difference in proportion of freshmen and sophomores responding affirmatively to this study.
Use %95 confidence level. Is the difference statistically significant? Why?​