(A)Draw a Scatterplot,of the Data and Comment on the Relationship

question 6

Essay

(A)Draw a scatterplot,of the data and comment on the relationship between shelf space and weekly sales.
(B)Run a regression on this data set and report the results.
(C)What are the least squares regression coefficients of the Y-intercept (a)and slope (b)?
(D)Interpret the meaning of the slopeb.
(E)Predict the average weekly sales (in hundreds of dollars)of international food for stores with 13 feet of shelf space for international food.
(F)Why would it not be appropriate to predict the average weekly sales (in hundreds of dollars)of international food for stores with 35 feet of shelf space for international food?
(G)Identify the coefficient of determination, ,and interpret its meaning.
(H)Determine the standard error of the estimate.What does it represent?
(I)Draw a scatterplot of residuals versus fitted values.What does this graph indicate?

---

Definitions:

Corpus Luteum

An ovarian structure that forms after ovulation from the ruptured follicle, responsible for the production of progesterone during the early stages of pregnancy.

Corpus Albicans

The corpus albicans is the regressed, fibrous remains of the corpus luteum in the ovary, following the absence of pregnancy.

Progesterone

A steroid hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species.

Spermicidal Agents

Substances used to kill sperm, often used as a form of contraception.