n waiting r response X A Sample Of 26 Offshore Wire Electrical-discharge h e Con
ID: 2936859 • Letter: N
Question
n waiting r response X A Sample Of 26 Offshore Wire Electrical-discharge h e Consider The Two Confide Portal Fe https://www.webassign.net/web/Student/Assignment Responses/submit?pos-98 de =17427799 confidence interval in each of the following situations. (Round your answers to three decimal places.) a) Confidence level = 95%, dr-5 b) Confidence level-95%, df-20 (c) Confidence level = 9996, df-20 (d) Confidence level-99%, n 10 (e) Confidence level-9896, df-22 (f) Confidence level " 99%, n-32 You may need to use the appropriate table in the Appendix of Tables to answer this question. 5 of 12 View Noxt QuestionExplanation / Answer
a) From the t-distribution tables, we get:
P( t5 < 2.571 ) = 0.975.
Therefore due to symmetry, we get:
P( -2.571 < t5 < 2.571 ) = 0.95
Therefore 2.571 is the critical value here.
b) From the t-distribution tables, we get:
P( t20 < 2.086 ) = 0.975.
Therefore due to symmetry, we get:
P( -2.086 < t20 < 2.086 ) = 0.95
Therefore 2.086 is the critical value here.
c) From the t-distribution tables, we get:
P( t20 < 2.845 ) = 0.995.
Therefore due to symmetry, we get:
P( - 2.845 < t20 < 2.845 ) = 0.99
Therefore 2.845 is the critical value here.
d) From the t-distribution tables, we get:
P( t10 < 3.169) = 0.995.
Therefore due to symmetry, we get:
P( - 3.169 < t10 < 3.169 ) = 0.99
Therefore 3.169 is the critical value here.
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