Question: The acceleration times (in seconds) from 0 to 60 miles per hour for 26 randomly selected sedans are shown in the table. Use a 98%

The acceleration times (in seconds) from 0 to 60 miles per hour for 26 randomly selected sedans are shown in the table. Use a 98% level of confidence.

Assume the sample is from a normally distributed population and construct the indicated confidence intervals for
(a) The population variance Ïƒ2 and
(b) The population standard deviation Ïƒ. Interpret the results.

Acceleration times (in seconds) 6.9 8.3 7.6 7.2 7.5 7.6 9.3 7.8 9.4 6.4 8.2 7.7 7.8 9.8 6.3 6.4 8.9 6.2 9.0 9.6 8.3 3 9.1 6.2 9.7 7.1 9.4

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