Explanation:
Total visitors for 2006 = 3,281,435
Margin of error = 7.5% of 3,281,435
= 0.075 * 3,281,435
= 246, 107.625
Confidence interval:
Lower bound = Total visitors for 2006 - margin of error
= 3,281,435 - 246, 107.625
= 3035327. 375
= 3035328 ( round up)
Upper bound = Total visitors for 2006 + margin of error
= 3,281,435 + 246, 107.625
= 3527542.625
= 3527543 ( round up)
The following is taken from a State of the Park Report for Banff National Park.
Visitors Numbers
Total Visitors: 2004= 3,135,727. 2005=3,164,906. 2006=3,281,435
Total visitor days: 2004= 7,453,465. 2005= 7,518,997. 2006= 7,784,044
Total visitors have increased by 4.6% and total visitor days by 4.4% in this period. Group tour visitors have increased slightly from 11.6% to 12.6% of the total. These figures are not absolutes, as the margin of error for total visitors is 7.5% and for total visitor days, 7.3%.
1.) determine the confidence interval for total visitors in 2006.
1 answer
1 answer