Corrections:

18)  p=.9940
19)  z-value of test statistic: z = -2.56.  We reject H0 – there is enough evidence to reject the claim.
20) z-value of test statistic: z = 2.67
21) z-value of test statistic: z = 2.19.  We reject H0 – the sample information does indicate that a flight length is usually more than 464 miles.

Study Guide:

Linked below are study guides for various problems on the final exam review sheet.  These were created by my Spring 2013 class as a final OpenLab project.
NOTE: The problem numbers may appear different within the study guides (they were based on an earlier version of the review sheet, with the same problems but different numbers).

• Problem 3
• Problem 4
• Problem 5
• Problem 12
• Problem 13
• Problem 14
• Problem 15
• Problem 16
• Problem 17
• Problem 24
• Problem 25
• Problem 27 (NOTE: Includes the entire problem plus one additional part, which comes first)
• Problem 28 (NOTE: This problem uses slightly different numbers, but exactly the same setup – the explanation still works very well)