Using very large samples helps to:
Select one:
a. Identify differences when they are indeed present.
b. Increase variation within the group.
c. Eliminate bias.
d. Contain research costs.
Option 'C' is correct. (Eliminate bias)
# because
When there will be large sample size then it's strong probability to eliminate bias.
# As per as increase sample size, then decrease variation /eliminate bias.
# The large samples data follow standard normal distribution, means variance would be very less.
Using very large samples helps to: Select one: a. Identify differences when they are indeed present....
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