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 ৪ 7 8 4 6 9 a. Compute the two sample means. (to nearest whole number) T1 = T2 = b. Compute the two sample standard deviations. (to 2 decimals) S1 = 82 = 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 number)

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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)

- ( [ ] , [ ] )
Transcribed Image Text: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) - ( [ ] , [ ] )
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