27. VACATION SURVEY In a survey of 439 teenagers in the United States, 14% said that they worked during their summer vacation. a. What is the margin of error for the survey? b. Give an interval that is likely to contain the exact percent of all U.S. teenagers who worked during their summer vacation.

Q: 5000 shares of stock were purchased at $25 per share with a 5% broker commission.  The following…

A: 5000 shares of stock were purchased at $25 per share with a 5% broker commission.   They were sold…

Q: If x = -4, then -(-x) = 4. O True O False

A: Solution: The objective is to determine the which option is correct

Q: Original shirt cost: $55 Current shirt cost: $40 Find the percent of decrease. [? ]% Round to the…

A:

Q: Calculate the markup and the markup percent on a Cornish pasty if the food cost is $7.21 and the…

A:

Q: 1 + 4 = 5 2 + 5 = 12 3 + 6 = 21 8 + 11 = ?

A: Solution :  Given that  1 + 4 = 5  2 + 5 = 10  3 + 6 = 21  8 + 11 = ?