Which of the following statements about t-distribution and chi square distributin is/are always true. Select all that apply. A. Both distributions are bell-shaped. Both distibutions are determine by its degrees of freedom. C. Both distributions approaches the standard normal distributin when the sample size is vey large. D. The area under both distributions is equal to one. E. The mean of both distributions is equal to degrees of freedom.

Which of the following statements about t-distribution and chi square distributin is/are always true. Select all that apply. A. Both distributions are bell-shaped. Both distibutions are determine by its degrees of freedom. C. Both distributions approaches the standard normal distributin when the sample size is vey large. D. The area under both distributions is equal to one. E. The mean of both distributions is equal to degrees of freedom.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

Which of the following statements about t-distribution and chi square distributin is/are always true. Select all that apply.

A. Both distributions are bell-shaped.

Both distibutions are determine by its degrees of freedom.

C. Both distributions approaches the standard normal distributin when the sample size is vey large.

D. The area under both distributions is equal to one.

E. The mean of both distributions is equal to degrees of freedom.

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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