17.34 (EX) Oligofructose and calcium absorption 1/6: Nondigestible oligosaccharides are known to stimulate calcium absorption in rats. A double-blind, randomized experiment investigated whether the consumption of oligofructose similarly stimulates calcium absorption in healthy male adolescents 14 to 16 years old. The subjects took a pill for nine days and had their calcium absorption tested on the last day. The experiment was repeated three weeks later. Some subjects received the oligofructose pill in the first round and then a pill containing sucrose (which served as a control). The order was switched for the remaining subjects. Here are the fractional calcium absorption data (in percent of intake) for 11 subjects: Subject 1 2 3 4 5 6 7 8 9 10 11 Control 78.4 76.6 57.4 51.5 49.0 46.6 44.2 42.9 37.2 34.1 24.6 Olicofructose 62095146549 489 7438 503516 6hh527510

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Do the data support the hypothesis that oligofructose facilitates calcium obsorption? What is the test statistic?

Do the data support the hypothesis that oligofructose facilitates calcium obsorption? What is the degrees of freedom of the test?

 

**Title: Oligofructose and Calcium Absorption Study**

**Overview:**
Nondigestible oligosaccharides are known to stimulate calcium absorption in rats. This study explores whether oligofructose has a similar effect on calcium absorption in healthy male adolescents aged 14 to 16 years.

**Experiment Design:**
- **Type:** Double-blind, randomized experiment.
- **Duration:** Subjects took a pill for nine days.
- **Testing:** Calcium absorption was tested on the last day.
- **Procedure:** 
  - Some subjects received an oligofructose pill first, followed by a sucrose pill (control).
  - The remaining subjects received the pills in the opposite order.
- **Repetition:** The test was repeated three weeks later.

**Results:**
The table displays fractional calcium absorption data (in percent of intake) for 11 subjects.

| Subject      | 1    | 2    | 3    | 4    | 5    | 6    | 7    | 8    | 9    | 10   | 11   |
|--------------|------|------|------|------|------|------|------|------|------|------|------|
| **Control**  | 78.4 | 76.6 | 57.4 | 51.5 | 49.0 | 46.6 | 44.2 | 42.9 | 37.2 | 34.1 | 24.6 |
| **Oligofructose** | 62.0 | 95.1 | 46.5 | 49.4 | 89.7 | 43.8 | 50.3 | 51.6 | 66.6 | 52.7 | 54.0 |

**Conclusion:**
The table indicates the variation in calcium absorption between the control and the oligofructose treatment across the subjects. Further analysis is required to draw definitive conclusions on oligofructose's effect compared to the control.
Transcribed Image Text:**Title: Oligofructose and Calcium Absorption Study** **Overview:** Nondigestible oligosaccharides are known to stimulate calcium absorption in rats. This study explores whether oligofructose has a similar effect on calcium absorption in healthy male adolescents aged 14 to 16 years. **Experiment Design:** - **Type:** Double-blind, randomized experiment. - **Duration:** Subjects took a pill for nine days. - **Testing:** Calcium absorption was tested on the last day. - **Procedure:** - Some subjects received an oligofructose pill first, followed by a sucrose pill (control). - The remaining subjects received the pills in the opposite order. - **Repetition:** The test was repeated three weeks later. **Results:** The table displays fractional calcium absorption data (in percent of intake) for 11 subjects. | Subject | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |--------------|------|------|------|------|------|------|------|------|------|------|------| | **Control** | 78.4 | 76.6 | 57.4 | 51.5 | 49.0 | 46.6 | 44.2 | 42.9 | 37.2 | 34.1 | 24.6 | | **Oligofructose** | 62.0 | 95.1 | 46.5 | 49.4 | 89.7 | 43.8 | 50.3 | 51.6 | 66.6 | 52.7 | 54.0 | **Conclusion:** The table indicates the variation in calcium absorption between the control and the oligofructose treatment across the subjects. Further analysis is required to draw definitive conclusions on oligofructose's effect compared to the control.
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