Frozen Pizza The product manager at a subsidiary of Kraft Foods, Inc. is interested in learning how sensitive sales are to changes in the unit price of a frozen pizza in Dallas, Denver, Baltimore, and Chicago. The product manager has been provided data on both Price and Sales volume every fourth week over a period of nearly four years for the four cities (Frozen Pizza). Examine the relationship between Price and Sales for each city.
A. Is the relationship between Price and Sales significant?
B. Describe the relationship Price and Sales. Is it positive, negative, or no relationship?
C. What is the regression equations for sales to pizza prices for the four cities?
D. What will be the predicted sales volume in the four cites if the price of the frozen pizza was $2.50

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution

Question 14 (1 point) larry deposits $15 a week into a savings account. his balance in his savings account grows by a constant percent rate.