6. Which of the following is frue about the t- distibution? A. A t-distribution is composed of bell-shaped curves. Each curve represents a degree of freedom. B. As the sample size decreases, the t-distribution approaches the standard normal distribution. C. Ihe population is not nomally distributed. D. The distribution at the left of the mean is not the same as the distribution at the right of the mean. 7. This table shows the probabilities/areas of the t- distribution for different degrees of freedom. This is used to find the critical values of t. A. c- table C. t- table B. d - table D. z- table 8. What are the critical values of i when n = 25 an the confidence level = 90% in two tails? A. ±2.064 B. ±1.708

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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Answer 6,7,8
6. Which of the following is true about the t- distibution?
A. A t-distribution is composed of bell-shaped curves. Each curve
represents a degree of freedom.
B. As the sample size decreases, the t-distribution approaches the
standard normal distribution.
C. Ihe population is not nomally distributed.
D. The distribution at the left of the mean is not the same as the distribution
at the right of the mean.
7. This table shows the probabilities/areas of the t- distribution for different
degrees of freedom. This is used to find the critical values of t.
A. c- table
B. d – table
C. t- table
D. z- table
8. What are the critical values of i when n = 25 an the confidence level = 90%
in two tails?
A. £2.064
B. ±1.708
Transcribed Image Text:6. Which of the following is true about the t- distibution? A. A t-distribution is composed of bell-shaped curves. Each curve represents a degree of freedom. B. As the sample size decreases, the t-distribution approaches the standard normal distribution. C. Ihe population is not nomally distributed. D. The distribution at the left of the mean is not the same as the distribution at the right of the mean. 7. This table shows the probabilities/areas of the t- distribution for different degrees of freedom. This is used to find the critical values of t. A. c- table B. d – table C. t- table D. z- table 8. What are the critical values of i when n = 25 an the confidence level = 90% in two tails? A. £2.064 B. ±1.708
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