Answer Happy

Question 3 T > How much more time do statistics students spend studying for their final exam than they spend studying for their midterm exam? A researcher randomly selected ten statistics students and asked how many minutes they spent studying for each exam. The results of the study are shown below. Time Studying for the Final and the Midterm Final 175 215 260 256 86 286 254 244 Midterm 96 226 38 107 188 99 232 91 200 86 330 214 Assume both follow a Normal distribution. For this study, we should use [1-interval for the difference between two dependent population means Compute the 90% confidence interval for the difference. Round to the nearest minute. Interpret the confidence interval in the context of the study: with 90% confidence the mean number of minutes that the ten sampled statistics students spent studying for their final exam is between $38 and $153 more than the mean number of minutes that the ten sampled statistics students spent studying for their final exam. With 90% confidence the population mean number of minutes statistics students spend studying for their final exam is between $38 and $153 more than the population mean number of minutes statistics students spend studying for their midterm exam.