Question

Explain how to find the critical value, T* with a graphing TI-84 calculator. round critical t-Values to 4 decimal places

(8 points) Identify the critical t. An independent random sample is selected from an approximately normal population with unknown standard deviation. Find the degrees of freedom and the critical t value t* for the given sample size and confidence level. Round critical t values to 4 decimal places. Critical value, t* Sample size, n Confidence level 19 9 0 24 95 4 98 17 99 Degree of Freedom 18 23 3 16 Help Entering Answers Preview My Answers Submit Answers

Answer 1

$\small \mathbf{Solution}$

Use excel function " =T.INV.2T(probability, degrees of freedom) " to find t*

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https://drive.google.com/open?id=1iGyqdQ7DxrTPnjphHKTbb-2AyHq8E7e6

А В C Е Change only 1 confidence level Degrees of freedom Sample size, n Critical value, t* 3 19 90 18 1.7341 95 24 23 2.0687 4.5407 6 4 98 3 17 99 16 2.9208 L5 CO