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An interval estimate for the average distance car tyres lasted during their lifetime was reported to be 34578 kilometres to 38512 kilometres. This interval estimate

An interval estimate for the average distance car tyres lasted during their "lifetime" was reported to be 34578 kilometres to 38512 kilometres. This interval estimate was based on a sample of46 tyres. The variance of the lifetime was determined from previous studies to be48512333 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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