Difference in the mean weights

Reference no: EM13965399

A supermarket chain is considering two sources A and B for the purchase of 50-pound bags of onions. The following table gives the results of a study.

	Source A	Source B
Number of bags weighed	80	100
Mean weight	105.9	100.5
Sample variance	0.21	0.19

Test at α = 0.05 whether there is a difference in the mean weights.

Reference no: EM13965399

Questions Cloud

What managerial insights are revealed by the computations : What managerial insights are revealed by the computations that you performed in this problem?

Compare the mean hemoglobin : In order to compare the mean Hemoglobin (Hb) levels of well-nourished and undernourished groups of children, random samples from each of these groups yielded the following summary.

Calculate the hydrodynamic boundary layer thickness : Calculate the Hydrodynamic boundary layer thickness and thermal boundary layer thickness.

Write a summary paper about story a good man is hard to find : Write a summary paper about the story "A Good Man is Hard to Find". See the document titled MLA Format for an Essay, listed first in the Essay Folder.

Difference in the mean weights : A supermarket chain is considering two sources A and B for the purchase of 50-pound bags of onions. The following table gives the results of a study.

Calculate the heat transfer per unit width of the plate : Calculate the heat transfer per unit width of the plate. Assuming the length of the plate along the flow of air is 2m.

Results of a statistical study : It is believed that the effects of smoking differ depending on race. The following table gives the results of a statistical study for this question.

Show that orthogonal transformation preserves dot product : Show that the orthogonal transformation preserves the dot product i.e Au dot Av = u dot v. Hence or otherwise show that the angles between 2 vectors are preserved under the orthogonal transformation.

Salaries of male and female professors : Assume that the salaries of male and female professors are both normally distributed with equal standard deviations.

User Account

All Pages