Question 1176872
Let's analyze the parameters of interest in this scenario.

**Understanding Parameters**

A parameter is a numerical characteristic of a population. In this case, the population is all manual laborers working for Agri-Giant Corporation.

**Analyzing the Options**

* **A. The total number of pounds of tomatoes each labourer picks in an 8 hour shift.**
    * This is a characteristic of individual laborers, not the population as a whole.
* **B. The average number of pounds of tomatoes typically picked by a manual labourer in an 8-hour shift.**
    * This is the population mean, which is a key parameter of interest. The corporation's decision is based on this average.
* **C. The variance of the weights of tomatoes typically picked by a manual labourer in an 8-hour day.**
    * This is the population variance, another parameter of interest. It indicates the variability in picking amounts.
* **D. 100**
    * This is the sample size, not a population parameter.
* **E. 8 hours**
    * This is a fixed condition of the study, not a population parameter.
* **F. 240 pounds**
    * This is a threshold value for the corporation's decision, not a population parameter.
* **G. The average number of pounds of tomatoes picked by the 100 manual labourers.**
    * This is a sample statistic, not a population parameter. This is the sample mean, used to estimate the population mean.
* **H. None of the above**
    * This is incorrect, as options B and C are parameters.

**Correct Answers**

The parameters of interest are:

* **B. The average number of pounds of tomatoes typically picked by a manual labourer in an 8-hour shift.**
* **C. The variance of the weights of tomatoes typically picked by a manual labourer in an 8-hour day.**