Shipments of meat, meat by-products, and other ingredients are mixed together in
Shipments of meat, meat by-products, and other ingredients are mixed together in several filling lines at a pet food canning factory. Management suspects that, although the average amount filled in the can of pet food is usually the same, the variability of the cans filled in Line A is much greater than that of Line B. The following sample data are obtained from filling 8-ounce cans. Assuming that the population variances are unequal, at the .05 level of significance, is there evidence of a difference between the average weights of cans filled on the two lines?
line a / line b
8.005/7.997 x value
.012/.005 s value
11/16 N vale
a. If you use the 5% level of significance, what is the value of p?
A) 2.09
B) .0586
C) .0038
D) .0293
b. What is the decision at the 5% level of significance?
A) Fail to reject the null hypothesis: conclude that the lines are not different.
B) Reject the null hypothesis and conclude the lines are different.
C) Reject the alternate hypothesis and conclude Line A is different.
D) Fail to reject the alternate hypothesis and conclude that both lines are different.
c. This example is what type of test?
A) One sample test of means.
B) Two sample test of means.
C) Paired t-test.
D) Test of proportions.
