g Which of the following is not appropriate to use the t-confidence interval for . a. The sample is based on a simple random sam

Question

2 years ago

8

ple (SRS). b. The sample size is greater than 30. c. The variable has a Normal distribution. d. The population standard deviation, , is known.

1 answer:

KATRIN_1 [288] · Answer 1 · 2022-08-09T19:08:55+03:00

Answer:

d. The population standard deviation is known.

Step-by-step explanation:

T-distribution or Z-distribution, which to use?

If we have the population standard deviation is known, we use the z-distribution.

Otherwise, if we only have the standard deviation for the sample, we use the t-distribution.

Which of the following is not appropriate to use the t-confidence interval for

When the population standard deviation is known, so letter d.