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![Consider the following data for two independent random samples taken from two normal populations.
**Excel File:** data10-11.xlsx
| | | | | | |
|---------|-----|-----|-----|-----|-----|
| **Sample 1** | 10 | 7 | 13 | 7 | 9 | 8 |
| **Sample 2** | 8 | 7 | 8 | 4 | 6 | 9 |
### a. Compute the two sample means. (to nearest whole number)
- \(\bar{x}_1 =\) [ ]
- \(\bar{x}_2 =\) [ ]
### b. Compute the two sample standard deviations. (to 2 decimals)
- \(s_1 =\) [ ]
- \(s_2 =\) [ ]
### c. What is the point estimate of the difference between the two population means?
- [ ]
### d. What is the 90% confidence interval estimate of the difference between the two population means? (to 2 decimals and enter negative value as negative)
- ( [ ] , [ ] )](https://content.bartleby.com/qna-images/question/6387f1fe-f7de-460c-a439-51c8967659dd/36ad8e9e-a32e-4adc-8b3a-b4a51330978e/7a4se0m_processed.jpeg)
