A confidence interval was constructed to estimate the differ…
A confidence interval was constructed to estimate the difference of proportions from two populations. The interval was found to be (-0.42, 1.87). Based on this interval, it is reasonable to conclude that there is NO difference between these two population proportions.
Read DetailsAn academic counselor examined data from 84 students from th…
An academic counselor examined data from 84 students from the Fall semester and 106 students from the Spring semester. She found that 74% of the Fall students booked appointments on time, whereas 62% of the Spring students did. Construct a 95% confidence interval to investigate the difference of proportions between the two semesters. (Treat Fall as Group1 and Spring as Group 2.)
Read Details