STAT 1350 Homework Chapters 14-15 Name The price charged for a 16 ounce soda at Major League Baseball games depends on the price charged for a hot dog. The table below gives data for 21 Major League Stadiums, TABLE 14.2 Hot dog and soda pricos (in dollars) at Major League Baseball stadiums Team Hot dog Soda Team Hot dog Soda Team Hot dog Soda 2.75 Angels 2.29 Giants 3.75 3.00 2.25 Rangers 2.25 Astros 4.00 2.86 Indians 2.50 3.00 Red Sox 3.75 2.86 Braves 3.75 2.80 Marlins 8.00 2.67 Rockies 8.25 8.00 Brewers 2.50 2.67 Mets 4.60 2.85 Royals 2.50 2.29 Cardinals 3.00 3.14 Padres 3.00 3.00 Tigers 1.60 2.00 Dodgers 3.75 2.50 Phillies 3.25 2.40 3.00 2.20 Expos 1.47 2.20 Pirates 2.25 2.25 White Sox 2.75 2.67 Twins a) The explanatory variable is and the response variable is b) Make a scatterplot of the data. Label both axes with the appropriate measure (not just x and y). 2 3 c) Describe the direction, form, and strength of the relationship. direction strength d) Determine the correlation coefficient, r.

e) What proportion of the variation in soda price can be attributed to the hot dog price? f) Determine the least squares regression line for predicting soda cost based on hot dog cost. g) Predict the cost of a soda if a hot dog $3.50. Is this a valid prediction? Explain. h) Predict the cost of a soda if a hot dog $7.50. Is this a valid prediction? Explain.