Note: Answer the Question(s) by Using the TI-30XA (or other approved] Calculator

Question

Note: Answer the Question(s) by Using the TI-30XA (or other approved] Calculator. IMPORTANT: Make sure you carry all decimals until you reach your answer, then round to four decimals Consider the following data for two independent random samples taken from two normal populations with variances. Find the 99% confidence interval for 1-u2. see exercise 11 on page 449 of your textbook for a similar problem.) 10 Sample 1 Sample 2 21 12 16 24 Left Endpoint 26 27 28 29 Right Endpoint- click to srade Your Work

Explanation / Answer

The statistical software output for this problem is:

Two sample T confidence interval:
1 : Mean of Sample 1
2 : Mean of Sample 2
1 - 2 : Difference between two means
(with pooled variances)

99% confidence interval results:

Hence,

Left endpoint = -7.5561

Right endpoint = 1.5561

Difference Sample Diff. Std. Err. DF L. Limit U. Limit 1 - 2 -3 1.4375906 10 -7.5561165 1.5561165

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