Mathematics, 01.04.2020 01:55 Anonymousmike

A sample of size n = 12 does not have a known population standard deviation. The population appears to be normally distributed. Determine whether a margin of error should be calculated using a critical value of zα/2, a critical value of tα/2, or neither.

a critical value of tα/2

neither

a critical value of zα/2

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