SOLUTION: I am really having trouble with this. If anyone can please help me I'd appreciate it a lot. I am not sure how to do this. The data I collected for this problem is: McDonald's

Question 183955: I am really having trouble with this. If anyone can please help me I'd appreciate it a lot. I am not sure how to do this. The data I collected for this problem is:
McDonald's Cheesburger
# of fat calories: 103
Grams of sat. fat: 6.0 g
Wendy's cheesburer
# of fat calories: 230
Grams of sat. fat: 6.0g
Culvers cheeseburger
# of fat calories: 180
Grams of sat. fat: 8.0
McD's large fries
# of fat calories: 230
Grams of sat fat: 4.5g
Culvers lrg. fries
# of fat calories 211
Grams of sat fat: 10.8g
Wendy's lrg fries
# of fat calories: 220
grams of sat. fat: 0g
Collect data from several fast food chains on the number of fat calories and grams of saturated fat in menu items. Record at least 12 ordered pairs of (fat calories, grams of saturated fat). Organize your data in a table.
II. Make a scatter plot of the data on graph paper. Be sure to label the axes and use an appropriate title for the graph.
III. Draw a trend line for the scatter plot. Use the following scatter plot of the ordered pairs (fat grams, total calories) as an example.
IV. Calculate the slope of the trend line. (Choose two points on the line and find vertical change over horizontal change.)

V. Using the slope and y-intercept, write the equation of the trend line ( y = mx + b).
VI. Choose a "calories from fat" value that is not in your collected data set and that is at least 10 fat calories away from any collected value. Use the equation calculated in step V to predict the number of fat grams in an item having that number of fat calories. Be sure to show your work.
VII. Search for an item in a fast food menu having the same number of fat calories as the one you chose above. (If you cannot find the exact value, get as close as you can.) Compare the calculated value from step VI to this actual value. Explain why (or why not) you would have expected your prediction (calculated value) to be close to the actual value.
Thank you very much

Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Doing this entire problem is a lot of work. You will be more likely to get the help you need if you show the work you have done and ask for specific help on those parts of the problem that are giving you difficulty.

By the way, you only have half of the data requested by the problem. You need 12 ordered pairs. That means 12 different food items, so 12 total fat numbers and 12 saturated fat numbers. Try KFC and El Pollo Loco. Chicken places are good because the fat content of a chicken breast is significantly different than the fat content of a chicken thigh, for example. Plus these two places have lots of side dishes that can add to your data set or give you a selection to use for part VII of the problem.

John

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