Theoretical Distribution Using the theoretical distribution, complete the following statements. Use a normal approximation based on the sample mean and standard deviation. IQR = _______ The 15 percentile is _______. The 85 percentile is _______. Median is _______.   Attached I have the data I am currently working with and the assignment. I need help with the Theoretical Distribution section above.

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Theoretical Distribution
Using the theoretical distribution, complete the following statements. Use a normal
approximation based on the sample mean and standard deviation.
IQR = _______
The 15 percentile is _______.
The 85 percentile is _______.
Median is _______.

 

Attached I have the data I am currently working with and the assignment. I need help with the Theoretical Distribution section above.

 

### Calculate the Following

3. Calculate the following.
   - a. \( \bar{x} = \_\_\_\_\_ \)
   - b. \( s = \_\_\_\_\_ \)

4. Draw a smooth curve through the top of the bars of the histogram. Write one to two complete sentences to describe the general shape of the curve. (Keep it simple. Does the graph go straight across, does it have a v-shape, does it have a hump in the middle or at either end, and so on?)

### Analyze the Distribution

Using your sample mean, sample standard deviation, and histogram, what was the approximate theoretical distribution of the data you collected?
- \( X \sim \_\_\_ \left( \_\_\_\_\_ , \_\_\_\_\_\_ \right) \)
- How does the histogram help you arrive at the approximate distribution?

### Describe the Data

Using the data you collected complete the following statements. (Hint: order the data)

#### Remember
\( \text{IQR} = Q_3 - Q_1 \)

- **IQR = \_\_\_\_\_**
- The **15th percentile** is \_\_\_\_\_.
- The **85th percentile** is \_\_\_\_\_.
- **Median** is \_\_\_\_\_.
- What is the theoretical probability that a randomly chosen pinky length is more than 6.5 cm?
- Explain the meaning of the **85th percentile** of this data.

### Theoretical Distribution

Using the theoretical distribution, complete the following statements. Use a normal approximation based on the sample mean and standard deviation.

- **IQR = \_\_\_\_\_**
- The **15th percentile** is \_\_\_\_\_.
- The **85th percentile** is \_\_\_\_\_.
- **Median** is \_\_\_\_\_.
Transcribed Image Text:### Calculate the Following 3. Calculate the following. - a. \( \bar{x} = \_\_\_\_\_ \) - b. \( s = \_\_\_\_\_ \) 4. Draw a smooth curve through the top of the bars of the histogram. Write one to two complete sentences to describe the general shape of the curve. (Keep it simple. Does the graph go straight across, does it have a v-shape, does it have a hump in the middle or at either end, and so on?) ### Analyze the Distribution Using your sample mean, sample standard deviation, and histogram, what was the approximate theoretical distribution of the data you collected? - \( X \sim \_\_\_ \left( \_\_\_\_\_ , \_\_\_\_\_\_ \right) \) - How does the histogram help you arrive at the approximate distribution? ### Describe the Data Using the data you collected complete the following statements. (Hint: order the data) #### Remember \( \text{IQR} = Q_3 - Q_1 \) - **IQR = \_\_\_\_\_** - The **15th percentile** is \_\_\_\_\_. - The **85th percentile** is \_\_\_\_\_. - **Median** is \_\_\_\_\_. - What is the theoretical probability that a randomly chosen pinky length is more than 6.5 cm? - Explain the meaning of the **85th percentile** of this data. ### Theoretical Distribution Using the theoretical distribution, complete the following statements. Use a normal approximation based on the sample mean and standard deviation. - **IQR = \_\_\_\_\_** - The **15th percentile** is \_\_\_\_\_. - The **85th percentile** is \_\_\_\_\_. - **Median** is \_\_\_\_\_.
### Data on Pinky Length

#### Table of Pinky Length Measurements
- Measurements: 7, 7, 7, 7, 6.5, 6.5, 6.5, 6.5, 6, 6, 7, 7, 5, 6.5, 7, 6.5, 6, 6.5, 6.5, 6, 5.5, 6.5, 6, 6.5, 6.5, 6, 6, 5.5, 6, 6.5

#### Statistical Summary
- **Average (Mean):** 6.433333
- **Standard Deviation (S):** 0.486602
- **1st Quartile (Q1):** 6
- **2nd Quartile (Q2/Median):** 6.5
- **Interquartile Range (IQR):** 0.875
- **15th Percentile:** 6
- **85th Percentile:** 7
- **Normal Distribution Approximation:**
  - \( X \sim \mathcal{N}(6.43, 0.487) \)
  
#### Probability Calculation
- **Probability of Length Greater than 6.5 cm:**
  - \( P(X > 6.5) = 0.266667 \)

#### Histogram Description
The histogram visualizes the frequency distribution of pinky lengths:
- **Intervals:**
  1. [5, 5.55]
  2. (5.55, 6.1]
  3. (6.1, 6.65]
  4. (6.65, 7.2]
  
- **Frequency:**
  - [5, 5.55]: 2
  - (5.55, 6.1]: 6
  - (6.1, 6.65]: 13 (most frequent)
  - (6.65, 7.2]: 9

This data and its analysis allow us to understand the distribution of pinky lengths in the sample, highlighting the central tendency, variability, and the probability of certain lengths.
Transcribed Image Text:### Data on Pinky Length #### Table of Pinky Length Measurements - Measurements: 7, 7, 7, 7, 6.5, 6.5, 6.5, 6.5, 6, 6, 7, 7, 5, 6.5, 7, 6.5, 6, 6.5, 6.5, 6, 5.5, 6.5, 6, 6.5, 6.5, 6, 6, 5.5, 6, 6.5 #### Statistical Summary - **Average (Mean):** 6.433333 - **Standard Deviation (S):** 0.486602 - **1st Quartile (Q1):** 6 - **2nd Quartile (Q2/Median):** 6.5 - **Interquartile Range (IQR):** 0.875 - **15th Percentile:** 6 - **85th Percentile:** 7 - **Normal Distribution Approximation:** - \( X \sim \mathcal{N}(6.43, 0.487) \) #### Probability Calculation - **Probability of Length Greater than 6.5 cm:** - \( P(X > 6.5) = 0.266667 \) #### Histogram Description The histogram visualizes the frequency distribution of pinky lengths: - **Intervals:** 1. [5, 5.55] 2. (5.55, 6.1] 3. (6.1, 6.65] 4. (6.65, 7.2] - **Frequency:** - [5, 5.55]: 2 - (5.55, 6.1]: 6 - (6.1, 6.65]: 13 (most frequent) - (6.65, 7.2]: 9 This data and its analysis allow us to understand the distribution of pinky lengths in the sample, highlighting the central tendency, variability, and the probability of certain lengths.
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