Answer Happy

In Exercises 11–18, use the indicated data to construct the
frequency distribution. (The data for Exercises 13–16 can be
downloaded at TriolaStats.com.)
13. Burger King Lunch Service Times Refer to Data Set 25 “Fast
Food” and use the drive- through service times for Burger King
lunches. Begin with a lower class limit of 70 seconds and use a
class width of 40 seconds.
14. Burger King Dinner Service Times Refer to Data Set 25 “Fast
Food” and use the drive- through service times for Burger King
dinners. Begin with a lower class limit of 30 seconds and use a
class width of 40 seconds.
15. Wendy’s Lunch Service Times Refer to Data Set 25 “Fast Food”
and use the drive- through service times for Wendy’s lunches. Begin
with a lower class limit of 70 seconds and use a class width of 80
seconds. Does the distribution appear to be a normal
distribution?