Please help, using the information in image below, answer these questions from a project where I used 30 different prices of 2018 Jeep Grand Cherokee's to find the confidence interval for mean. Show any calculations!

1. Set your level of confidence and state why you set it at this level.
2. Determine whether or not your sample data should be used to estimate . Provide any analysis or graphs used to make this determination. If the data should not be used to estimate the parameter clearly state why.
3. Construct your confidence interval (even if you determine that the data is unusable). State the margin of error. Build a sentence that interprets the meaning of the interval you've created.

Vehicle Prices ($):278973215035678348923400036024322593280032911359923299530359334503199537900359073557534200269953199135000339993700034997342003530032995314953450032990

Part 1: Confidence Interval for u: Step 1: Population: Used 2018 Jeep Grand Cherokee Trailhawk Quantitative variable: Price of vehicles Source: Source I used to obtain my sample of 30 individuals (prices) was from edmunds.com