T table confidence interval calculator

    • [DOC File]The Practice of Statistics

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      one-sample t interval. robust. 8.1 Confidence Intervals: The Basics (pp.615-643) ... Why is the difference between using the calculator versus Table b when finding the p-value in this example? ... Describe the Normal Condition when using the two sample t procedures. What calculator commands are used for a two-sample t test and interval for ?

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    • [DOC File]Confidence Interval for a Mean

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      Give a 99% confidence interval for the time spent by all U.S. hotel chain managers. Check using 8:TInterval. on your calculator—calculator uses a huge formula to calculate degrees of freedom (gives a larger df allowing for a smaller interval). Don’t forget to include this df if using the calculator interval.

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    • [DOC File]Confidence Interval for a Proportion

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      Without calculator or if calculator does not have inverse t: Use a student’s-t distribution probability table. Value of t is found at the intersection of the column for the confidence …

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    • [DOC File]Estimation

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      Find a point estimate and an interval estimate, with 95% confidence. POINT ESTIMATE = 14.7 students (This is just the average from the sample given in the problem.) You can do the interval estimate very easily with a TI-83 calculator.

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    • [DOC File]Key Fact 7 - Montgomery College

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      a) Compute the 90% confidence interval about µ if the sample size, n, is 45. 59.2 ± .9318 → (58.27, 60.13) For calculator feature use STAT, arrow to TESTS, and select 7:ZInterval, select Stats enter the required information, and CALCULATE. b) Compute the 90% confidence interval about µ if …

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    • [DOC File]Section 1

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      Construct a confidence interval for the difference between two population proportions. Perform a significance test for the difference between two population proportions. Vocabulary: None new. TI-83 Calculator Help: 2 Sample t-Test and Confidence Interval. If you have raw data: enter data in L1 and L2. Press STAT, TESTS, select 2-SampT-Test

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