A researcher for Agri-Giant Corporation wants to study how many pounds of tomatoes are typically picked by a manual labourer in an 8-hour day. The Corporation will consider using picking machines if the labourers cannot pick at least 240 pounds, on average. The researcher randomly sampled 100 farm labourers, found out how many pounds of tomatoes each picked and calculated the sample mean and standard deviation.
Part a) Which of the following is/are parameter(s) of interest with respect to the new investigation here? (Select all that apply)
A. The average number of pounds of tomatoes picked by the 100 manual labourers.
B. The average number of pounds of tomatoes typically picked by a manual labourer in an 8-hour shift.
C. 100
D. The variance of the weights of tomatoes typically picked by a manual labourer in an 8-hour day.
E. The total number of pounds of tomatoes each labourer picks in an 8 hour shift.
F. 240 pounds
G. 8 hours
H. None of the above
Part b) In testing a hypothesis about a parameter of interest, what would your null hypothesis be?
