Question: It seems that 14% of engaged women buy a wedding dress at least one size smaller than their current size. Why? Cornell researchers reported an alarming tendency for engaged women to attempt to lose sometimes unhealthy amounts of weight prior to their wedding (Neighbors & Sobal, 2008). The researchers found that engaged women weighed, on average, 152.1 pounds. The average ideal wedding weight reported by 227 women was 136.0 pounds. The data below represent the fictional weights of 8 women on the day they bought their wedding dress and on the day they got married. Did women lose weight for their wedding day?
a. Conduct the six steps of hypothesis testing using a one-tailed test and a p level of 0.05.
b. Report the test statistic in APA format.
c. Calculate the confidence interval for the paired samples t test that you conducted in part (a). Compare the confidence interval to the results of the hypothesis test.