Question: An interval estimate for the average distance car tyres lasted during their lifetime was reported to be 34121 km to38455 km. This interval estimate was

An interval estimate for the average distance car tyres lasted during their "lifetime" was reported to be 34121 km to38455 km. This interval estimate was based on a sample of 66 tyres. The variance of the lifetime was determined from previous studies to be51124695 km squared. What level of confidence can be attributed to this interval estimate? State your answer as a percentage, correct to the nearest whole number.

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