Question: What is the 99% confidence level for the mean number of minutes spent for a suspect to get from the crime scene to the beltway?

Do any of the statements align with the data presented? If so, which suspect(s)?

In the famous Simpson trial, the timeline was a key element. Each suspect’s time from the crime scene to their home has been calculated. Based on the emergency call by Mr. LeTycho’s housekeeper, A sample of 16 trips revealed that the mean time spent getting to the beltway was 10.7 minutes with a standard deviation of 11.6 minutes. What is the 99% confidence level for the mean number of minutes spent for a suspect to get from the crime scene to the beltway?

Below are their statements under oath of their commute times to the beltway based on their memory. Do any of the statements align with the data presented? If so, which suspect(s)?

Asian Female – My commute time is over 30 minutes because I catch the bus.

White Male – I don’t remember. I guess about 15 minutes, but I’m not sure.

Black Male – I caught a cab on many occasions. Most of the time I walked to the trolley. In a cab, about 12 – 14 minutes. When I walked, it was almost an hour; I haven’t had cab fare for over 8 months.

White Female – I had a friend pick me up. We live in the same neighborhood. We went to a bar around the corner. It took us 3 minutes.

Hispanic Female - About 15 minutes.

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