In: Statistics and Probability
For a recent year, the mean fare to fly from Charlotte, North Carolina to Chicago Illinois, on a discount ticket was $290. A random sample of 12 round trip discount fares on this route last month shows:
286 290 285 291 287 275 262 289 274 276 297 262
At the 0.01 significance level, can we conclude that the mean fare has decreased? What is the p value?
1. State the Null and Alternate hypothesis:
2. State the test statistic:
3. State the Decision Rule:
4. Show the calculation:
5. What is the interpretation of the sample data?
6. Show the P value
PLEASE SHOW ALL STEPS AND WORK