Question 1193308
**A. Populations**

* **Population 1:** Students in grades 10 and 11 in Montreal, Canada, who stress about their health.
* **Population 2:** Students in grades 10 and 11 in Montreal, Canada, who do not stress about their health.

**B. Counts, Sample Sizes, and Proportions**

* **Population 1 (Stressed about health):**
    * Sample size (n1): 358 students
    * Number of exergamers (x1): 0.299 * 358 ≈ 107 students
    * Proportion of exergamers (p1): 0.299 

* **Population 2 (Not stressed about health):**
    * Sample size (n2): 851 students
    * Number of exergamers (x2): 0.208 * 851 ≈ 177 students
    * Proportion of exergamers (p2): 0.208

**C. Guidelines for Large-Sample Confidence Interval**

Guidelines for using the large-sample confidence interval for the difference in proportions typically include:

* **n1 * p1 ≥ 10** 
* **n1 * (1 - p1) ≥ 10** 
* **n2 * p2 ≥ 10** 
* **n2 * (1 - p2) ≥ 10**

Let's check:

* 358 * 0.299 = 107.02 ≥ 10 
* 358 * (1 - 0.299) = 250.98 ≥ 10
* 851 * 0.208 = 177.008 ≥ 10
* 851 * (1 - 0.208) = 673.992 ≥ 10

**All conditions are met, so the guidelines for using the large-sample confidence interval are satisfied.**

**D. Guidelines for Large-Sample Significance Test**

The guidelines for using the large-sample significance test are generally the same as for the confidence interval:

* **n1 * p1 ≥ 10** 
* **n1 * (1 - p1) ≥ 10** 
* **n2 * p2 ≥ 10** 
* **n2 * (1 - p2) ≥ 10**

**Since these conditions were already verified in part C, the guidelines for using the large-sample significance test are also satisfied.**

**Note:** These guidelines are generally considered sufficient for most practical purposes. 

Let me know if you have any other questions or would like to proceed with the analysis!