A sample of 100 tyres is taken from a lot. The mean life of tyres is found to be 39,350 kms. with a standard deviation of 3,260. Could the sample come from a population with mean life of 40,000 kms ?...


A sample of 100 tyres is taken from a lot. The mean life of tyres is found<br>to be 39,350 kms. with a standard deviation of 3,260. Could the sample come from a<br>population with mean life of 40,000 kms ? Establish 99% confidence limits within which the<br>mean life of tyres is expected to lie.<br>

Extracted text: A sample of 100 tyres is taken from a lot. The mean life of tyres is found to be 39,350 kms. with a standard deviation of 3,260. Could the sample come from a population with mean life of 40,000 kms ? Establish 99% confidence limits within which the mean life of tyres is expected to lie.

Jun 09, 2022
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