tis thet-test statisticvalue (t = 20.88), dfis the degrees of freedom (df= 9), p-valueis the significance level of thet-test(p-value = 6.210^{-9}). conf.intis theconfidence interval(conf.int) of the mean differences at 95% is also shown (conf.int= [173.42, 215.56]) ...
Step 3:Based on the significance level you chose and the type of tail, you find the critical t-statistics by either looking at a t-distribution table or use a calculator or Excel. Then, you clearly state your rejection region Step 4:You compute the t-statistic using the formula specified...
Test Statistic (t-score): t=¯¯¯xd−μd(sd√n)t=x¯d−μd(sdn)where: ¯¯¯xdx¯d is the mean of the sample differences. μd is the mean of the population differences. sd is the sample standard deviation of the differences. n is the sample size....