Drinking 5 cups of coffee has been observed to lead to weight loss. A preliminary study of 35 obese participants were all given 5 cups of coffee every day for 10 weeks to evaluate the effect coffee on weight change. Go to Sakai> Lessons>Datasets> weight loss program to download the dataset (dataset name WEIGHTLOSS) to address this question. a) Run analyses using SPSS to calculate the following: total sample size, range, mean, variance, standard deviation, standard error of the mean for weight loss at posttest (variable: WTPST). Copy and paste your output from SPSS here (40 points) b) Draw a histogram to show the distribution for weight loss at posttest (variable: WTPST) and describe what type of skewness you observed. Copy and paste the graph from your SPSS output window (10 points)