13. Researchers in the corporate office of an airline wonder if there is a signi

Question

13. Researchers in the corporate office of an airline wonder if there is a significant difference between the cost of a flight on Priceline.com vs. the airline's own website. A random sample of 19 flights were tracked on Priceline and the airline's website and the 95% confidence interval for the mean difference in price (Priceline - Airline Site) was (18.64, 117.79). Which of the following is the appropriate conclusion?

Question 13 options:

1)

2)

3)

4)

5)

1)

We are 95% confident that the average difference in price is negative, with the higher price coming from Priceline.

2)

We are 95% confident that the average difference in price is positive, with the higher price coming from Priceline.

3)

There is no significant difference between the average price for the booking options

4)

We are 95% confident that the average difference in price is negative, with the higher price coming from the Airline sites

5)

We are 95% confident that the average difference in price is positive, with the higher price coming from the Airline sites

Explanation / Answer

Since Confidence Intervals limits are positive , we can conclude that

We are 95% confident that the average difference in price is positive, with the higher price coming from Priceline.

Answer: Option 2 is correct

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