Questions from Business Statistics

Q: Researchers investigated how the size of a bowl affects how much ice

Researchers investigated how the size of a bowl affects how much ice cream people tend to scoop when serving themselves.12 At an ice cream social, people were randomly given either a 17-oz or a 34-oz...

Q: Researchers randomly assigned participants either a tall, thin highball glass

Researchers randomly assigned participants either a tall, thin highball glass or a short, wide tumbler, each of which held 355 ml. Participants were asked to pour a shot (1.5Â...

Q: As we saw in Chapter 8, Exercise 46, between 1954

As we saw in Chapter 8, Exercise 46, between 1954 and 2016, swimmers have crossed Lake Ontario 62 times. Both women and men have made the crossing. Here are some plots (we’ve omitted...

Q: Here some additional information about the Ontario crossing times presented in Exercise

Here some additional information about the Ontario crossing times presented in Exercise 79 . It is generally thought to be harder to swim across the lake from north to south. Indeed, this has been don...

Q: In Olympic running events, preliminary heats are determined by random draw

In Olympic running events, preliminary heats are determined by random draw, so we should expect the abilities of runners in the various heats to be about the same, on average. Here are the times (in s...

Q: In 2015 the Council of Europe published a report entitled The European

In 2015 the Council of Europe published a report entitled The European School Survey Project on Alcohol and Other Drugs. (www.espad.org) Among other issues, the survey investigated the percentages of...

Q: In Exercise 81 , we looked at the times in two different

In Exercise 81 , we looked at the times in two different heats for the 400-m women run from the 2012 Olympics. Unlike track events, swimming heats are not determined at random. Instead, swimmers are s...

Q: Does it matter what kind of tee a golfer places the ball

Does it matter what kind of tee a golfer places the ball on? The company that manufactures Stinger tees claims that the thinner shaft and smaller head lessen resistance and drag, reducing spin and all...

Q: Given the test results on golf tees described in Exercise 83 ,

Given the test results on golf tees described in Exercise 83 , is there evidence that balls hit off Stinger tees travel farther? Again, assume that 6 balls were hit off each tee and that the data were...

Q: Is it a good idea to listen to music when studying for

Is it a good idea to listen to music when studying for a big test? In a study conducted by some statistics students, 62 people were randomly assigned to listen to rap music, music by Mozart, or no mus...