Question

An airline records flight delays in and out of Chicago O'Hare airport for a year. The average delay for these flights is 8.29 minutes with a standard deviation of 4.71 minutes. For a sample of 78 flights, 54% of flights will have an average delay greater than how many minutes?

Question 3 options:

1) 8.34

2) 8.76

3) 7.82

4) 8.24

5) There is not enough information to determine this.

Question 4 (1 point) A U.S. census bureau pollster noted that in 358 random households surveyed, 233 occupants owned their own home. For a 95% confidence interval for the proportion of home owners, what is the margin of error?

Question 4 options:

1) 0.0252

2) 0.0012

3) 0.0494

4) 0.0026

5) 0.0413

Answer 1