Question: TB MC Qu. 8-29 (Algo) We draw a random sample of... We draw a random sample of size 49 from the normal population with variance

TB MC Qu. 8-29 (Algo) We draw a random sample of...

We draw a random sample of size 49 from the normal population with variance 2.1. If the sample mean is 21.5, what is a 99% confidence interval for the population mean?

Multiple Choice

[21.0441, 21.9559]

[20.6483, 22.3517]

[20.9668, 22.0332]

[20.5248, 22.4752]

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