1. In comparing men and women, which group had higher body image scores? Provide a rationale for your answer. Women had higher body image scores with a X_73.07 compared to men with a X_60.22. With this study, the higher the mean, the greater the body image scores. Thus, the higher mean for women’s body image scores showed that women have stronger body image scores than men.
2. Men had higher variability in weight change over the last 12 months when compared to women. Is this statement true or false? Provide a rationale for your answer.
True. SD indicates variability or spread of scores. Men had higher variability in scores with a SD 22.40 versus women with a SD 13.63. This shows that women had less variation in their weight over the
12 months than men did. Men often are more variable in their weight loss and gain, in this study.
3. What are the X_and SD values for men’s body weight ratio?
X_53.66, SD 33.97. These values are found in Table 1.
4. Assuming that the distribution of scores is normal, calculate the scores where 95% of values around the mean lie for women with weight change over the last 3 months. Round your answer to two decimal places.
Assuming that the distribution of scores is normal, 95% of women’s weight changes in the last 3 months were between (–12.88, 15.82).
5. Assuming that the distribution of body weight ratio is a normal curve, 95% of the men lie between which two values of body weight ratio around the mean? Round your answer to two decimal places.
Assuming that the distribution of scores is normal for this sample, 95% of the men’s body weight ratio values lie between (–12.92, 120.24).
Calculation: X
_
1.96(SD) X
_
53.66 SD 33.97
53.66 −1.96(33.97) 53.66 −66.58 −12.92 53.66 1.96(33.97) 53.66 66.58 120.24
Expressed as (−12.92, 120.24)
