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Multiple choice: Select the best answer for Exercises 75 to 78. One reason for using a t
Chapter 8, Problem 75(choose chapter or problem)
Multiple choice: Select the best answer for Exercises 75 to 78. One reason for using a t distribution instead of the standard Normal curve to find critical values when calculating a level C confidence interval for a population mean is that (a) z can be used only for large samples. (b) z requires that you know the population standard deviation s. (c) z requires that you can regard your data as an SRS from the population. (d) z requires that the sample size is at most 10% of the population size. (e) a z critical value will lead to a wider interval than a t critical value.
Questions & Answers
QUESTION:
Multiple choice: Select the best answer for Exercises 75 to 78. One reason for using a t distribution instead of the standard Normal curve to find critical values when calculating a level C confidence interval for a population mean is that (a) z can be used only for large samples. (b) z requires that you know the population standard deviation s. (c) z requires that you can regard your data as an SRS from the population. (d) z requires that the sample size is at most 10% of the population size. (e) a z critical value will lead to a wider interval than a t critical value.
ANSWER:Step 1 of 2
Given that,
The information regarding the t-distribution and normal curve.
It is required to find one reason for using a t distribution instead of the standard Normal curve to find critical values when calculating a level C confidence interval for a population means.