# Question: Mr B the manager of the retail store in Exercise

Mr. B, the manager of the retail store in Exercise 12. .65, has seen the effect day of the week has on the mean number of customers per day and is now wondering if day has a similar effect on number of items purchased.

a. Do you think “day of week” has an effect on the mean number of items purchased per day? Equivalently, do you think the mean number of items purchased per day is the same for all days? If not, which days do you believe will be different? Explain.

b. Construct a dotplot for the number of items purchased per day for each different day of the week.

c. Does the dotplot in part b support your conjectures in part a? Explain.

d. Use the ANOVA technique to answer the question, “Does day affect the mean number of items purchased per day?” Use a = 0.05.

e. Explain any differences and similarities between your answer in part a and the answer found in part d.

a. Do you think “day of week” has an effect on the mean number of items purchased per day? Equivalently, do you think the mean number of items purchased per day is the same for all days? If not, which days do you believe will be different? Explain.

b. Construct a dotplot for the number of items purchased per day for each different day of the week.

c. Does the dotplot in part b support your conjectures in part a? Explain.

d. Use the ANOVA technique to answer the question, “Does day affect the mean number of items purchased per day?” Use a = 0.05.

e. Explain any differences and similarities between your answer in part a and the answer found in part d.

## Relevant Questions

Do the similarities seem reasonable? What does this imply about these variables? Refer to the following ANOVA table. a. Find the four missing values. b. Find the calculated value for F, F_. Using graphs to illustrate, explain the meaning of a correlation coefficient with the following values: a. - 1.0 b. 0.0 c. +1.0 d. _0.5 e. _0.6 A study shows that the death rate on rural roads is higher than that on other roads in the United States. The table that follows is an excerpt taken from “Death rates higher on rural road” in USA Today, which gives the ...a. If a sample of size 10 has a linear correlation coefficient of 0.60, is there significant reason to conclude that the linear correlation coefficient of the population is positive? Usea = 0.01 . b. If a sample of size 42 ...Post your question