For a sample of size 30 taken from a normally distributed population with standard deviation equal to 5, a 95% confidence interval for the population mean would require the use of:
A)z = 1.96.
B)z = 1.645.
C)t = 2.045.
D)t = 1.699.

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The Answer of For a sample of size 30 taken from a normally distributed population with standard deviation equal to 5, a 95% confidence interval for the population mean would require the use of:
A)z = 1.96.
B)z = 1.645.
C)t = 2.045.
D)t = 1.699.

For a Sample of Size 30 Taken from a Normally