Compute a new variable called Dfry by subtracting the price of a small fry before the wage increase (Pfry1) from the price of a small fry after the wage increase (Pfry2). September 2, 2020 Read More »
Use the variable MPG to determine if the mean gas mileage of the drivers differs from the EPA combined city/highway mpg estimate of 55. September 2, 2020 Read More »
Summarize results of the analysis following the format described in the text. September 2, 2020 Read More »
determine if emotional writing is significantly related to relationship stability. September 2, 2020 Read More »
What statistic could a person use to determine how much error in predicting student enrollment would have occurred if the equation specified in question 1 had been used between 1961 and 1989? September 2, 2020 Read More »
Use the data in the file 04Cars.sav (see previous problem) to assess the relation between gas mileage (use HiwayMPG) and car weight (Weight) controlling for (i.e., over and above) the influence of engine size (Engine) on gas mileage. September 2, 2020 Read More »
Write a program similar to Problem 4.5, except that we want to include all the data for each patient, excluding any patient who has had only one visit. September 2, 2020 Read More »
compute descriptive statistics for AGE (n, mean, standard deviation, standard error, minimum, and maximum) September 2, 2020 Read More »