MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A random sample of 12 chemists from Washington stats shows an average salary of $39,420 with a population standard deviation of $1,659. A random sample of 26 chemists from New Mexico has an average salary of $30,215 with a population standard deviation of $4,116. Find the 98% confidence interval of the difference of
![**Statistical Input Form**
This form is used for statistical calculations and consists of the following fields:
1. **Mean Values:**
- **Mean One (Washington):**
- Type: Sample
- Variable: \( x_1 \)
- Input Box: [ ]
- **Mean Two (New Mexico):**
- Type: Sample
- Variable: \( x_2 \)
- Input Box: [ ]
2. **Standard Deviations:**
- **Standard Deviation One (Washington):**
- Type: Population
- Variable: \( \sigma_1 \)
- Input Box: [ ]
- **Standard Deviation Two (New Mexico):**
- Type: Population
- Variable: \( \sigma_2 \)
- Input Box: [ ]
3. **Sample Sizes:**
- **Sample Size One (Cleveland):**
- Variable: \( n_1 \)
- Input Box: [ ]
- **Sample Size Two (Philadelphia):**
- Variable: \( n_2 \)
- Input Box: [ ]
4. **Rounding Calculations:**
- **Round answer(s) to four decimal places:**
- Formula: \( z \cdot (\alpha/2) \)
- Function: invNorm
- Input Boxes: [ ] , [ ]
- Formula: \( z \cdot (\alpha/2) \)
- Input Box: [ ]
- **Round answer(s) to one decimal place (no commas):**
- Difference in means: \( < \mu_1 - \mu_2 > \)
- Input Box: [ ]
This form is intended for performing statistical computations, allowing the user to input sample means, standard deviations, sample sizes, and desired rounding precision for results.](https://content.bartleby.com/qna-images/question/aa466c24-bbae-451a-a078-10dcd226e22a/35817803-7b29-429b-a58a-daddc5954edc/6ltijgs_processed.jpeg)
Transcribed Image Text:**Statistical Input Form**
This form is used for statistical calculations and consists of the following fields:
1. **Mean Values:**
- **Mean One (Washington):**
- Type: Sample
- Variable: \( x_1 \)
- Input Box: [ ]
- **Mean Two (New Mexico):**
- Type: Sample
- Variable: \( x_2 \)
- Input Box: [ ]
2. **Standard Deviations:**
- **Standard Deviation One (Washington):**
- Type: Population
- Variable: \( \sigma_1 \)
- Input Box: [ ]
- **Standard Deviation Two (New Mexico):**
- Type: Population
- Variable: \( \sigma_2 \)
- Input Box: [ ]
3. **Sample Sizes:**
- **Sample Size One (Cleveland):**
- Variable: \( n_1 \)
- Input Box: [ ]
- **Sample Size Two (Philadelphia):**
- Variable: \( n_2 \)
- Input Box: [ ]
4. **Rounding Calculations:**
- **Round answer(s) to four decimal places:**
- Formula: \( z \cdot (\alpha/2) \)
- Function: invNorm
- Input Boxes: [ ] , [ ]
- Formula: \( z \cdot (\alpha/2) \)
- Input Box: [ ]
- **Round answer(s) to one decimal place (no commas):**
- Difference in means: \( < \mu_1 - \mu_2 > \)
- Input Box: [ ]
This form is intended for performing statistical computations, allowing the user to input sample means, standard deviations, sample sizes, and desired rounding precision for results.
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