5. A random samples of 8 apples of variety A and an independent random sample of 13 apples of variety B yielded the following weights in ounces. Do the data provide sufficient evidence to
conclude that the mean weight of apples of variety A differs from the mean weight of apples of
variety B? Use the a = 0.10 level of significance. Assume that the sample data come from
normally distributed populations with no outliers. Then construct a 90% Confidence Interval to
estimate the mean difference in weight of the apple variety.
Variety A
Variety B
3.7 3.2 3.8 28 3.2
3.0 25 4.0 3.0 3.6
2.7 3.6 3.9 26 3.8
3.4 4.0 25 3.6
3.9
2.8