The following results come from two independent random samples taken of two populations. Sample 1 Sample 2 = 50 n2 = 30 = 13.3 T2 = = 11.7 01 = 2.3 02 = 3.4 a. What is the point estimate of the difference between the two population means? (to 1 decimal) 1.6 b. Provide a 90% confidence interval for the difference between the two population means (to 2 decimals). c. Provide a 95% confidence interval for the difference between the two population means (to 2 decimals).

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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The following results come from two independent random samples taken of two populations.

**Sample 1**
- \( n_1 = 50 \)
- \( \bar{x}_1 = 13.3 \)
- \( \sigma_1 = 2.3 \)

**Sample 2**
- \( n_2 = 30 \)
- \( \bar{x}_2 = 11.7 \)
- \( \sigma_2 = 3.4 \)

**a.** What is the point estimate of the difference between the two population means? (to 1 decimal)
- **Answer:** 1.6 ✓

**b.** Provide a 90% confidence interval for the difference between the two population means (to 2 decimals).
- **Answer:** ( [empty box], [empty box] ) ✗

**c.** Provide a 95% confidence interval for the difference between the two population means (to 2 decimals).
- **Answer:** ( [empty box], [empty box] ) ✗
Transcribed Image Text:The following results come from two independent random samples taken of two populations. **Sample 1** - \( n_1 = 50 \) - \( \bar{x}_1 = 13.3 \) - \( \sigma_1 = 2.3 \) **Sample 2** - \( n_2 = 30 \) - \( \bar{x}_2 = 11.7 \) - \( \sigma_2 = 3.4 \) **a.** What is the point estimate of the difference between the two population means? (to 1 decimal) - **Answer:** 1.6 ✓ **b.** Provide a 90% confidence interval for the difference between the two population means (to 2 decimals). - **Answer:** ( [empty box], [empty box] ) ✗ **c.** Provide a 95% confidence interval for the difference between the two population means (to 2 decimals). - **Answer:** ( [empty box], [empty box] ) ✗
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