Answer Happy

Question 1 The business model for flying in the USA tends to be towards a 'base' pricing model with additional charges for flight options, including baggage checking(!) Nine American airlines were selected at random. For each airline, the current fee for checking a single bag was recorded. The average for these 9 airlines is x = $25. Assume that the current fee follows a normal distribution with unknown mean and standard deviation o = $6. A 90% confidence interval for p is: A) $25 + $6.00 B) $25 + $3.29 C) $25 +$3.92 D) $25 + $9.87 E) $25 $11.76