A random sample of 25 roundtrip flights between Philadelphia and Dallas has an average airfare of $393.50 with a sample standard deviation of $50.30. The margin of error for a 90% confidence interval around this sample mean is ________
A) 10.6
B) 14.1
C) 17.2
D) 22.9
C
You might also like to view...
A(n) ________ is an extra payment designed to gain reseller participation in special programs
A) seasonal discount B) allowance C) discount D) quantity discount E) functional discount
Personal-business letters generally are not typed on letterhead stationery; instead, plain paper is used
Indicate whether the statement is true or false
What are the five categories of businesses based on level of diversification? How are they defined?
What will be an ideal response?
What is the total project budget in this time-phased budget?
Activity January February March April Survey 8,000 Design 5,250 4,500 Dirt 6,700 Foundation 12,550 Framing 37,250 Plumb 7,800 Wire 5,500 A) $85,450 B) $87,550 C) $82,050 D) $86,550