A machine is designed to fill toothpaste tubes, on an average, with 5.8 ounces of toothpaste. The manufacturer does not want any underfilling or overfilling. The correct hypotheses to be tested are
a. H0: 5.8 Ha: = 5.8.
b. H0: = 5.8 Ha: 5.8.
c. H0: > 5.8 Ha: 5.8.
d. H0: 5.8 Ha: < 5.8.
Question 2
Any method of sampling for which the probability of selecting a sample can not be computed is termed as
a. probability sampling.
b. nonprobabilistic sampling.
c. unknown population sampling.
d. None of these alternatives is correct.
