Brews 4 U is a local chain of coffee shops. Managers are interested in the costs of the stores and believe that the costs can be explained in large part by the number of customers patronizing the stores. Monthly data regarding customer visits and costs for the preceding year for one of the stores have been entered into the regression analysis.

Average monthly customer visits 5,400
Average monthly total costs 43,800
Regression results:
Intercept 687.65
b-coefficient 7.59
R² 0.79754

Required:
(a) In a regression equation expressed as y= a + bx, how is the letter b best described?
(b) How is the letter y in the regression equation best described?
(c) How is the letter x in the regression equation best described?
(d) Based on the data derived from the regression analysis, what are the estimated costs for 370 customer-visits in a month?
(e) What is the percent of the total variance that can be explained by the regression equation?

Read the following scenario and answer the question in 5-10 sentences. you are the owner of a small business that is a defendant in a lawsuit in federal court. you received bad news from your lawyer that the judge did not allow certain documents to be admitted as evidence in court and that the jury reached a $50,000 verdict in favor of the plaintiff. your lawyer tells you that it is within your legal right to hire him to file an appeal with the united states court of appeals. if the appellate court rules in your favor, you may be able to avoid paying part or all of the $50,000. evaluate your lawyer’s suggestion about appealing the decision.

Money aggregates identify whether each of the following examples belongs in m1 or m2. if an example belongs in both, be sure to check both boxes. example m1 m2 gilberto has a roll of quarters that he just withdrew from the bank to do laundry. lorenzo has $25,000 in a money market account. neha has $8,000 in a two-year certificate of deposit (cd).

Areal estate agent is considering changing her cell phone plan. there are three plans to choose from, all of which involve a monthly service charge of $20. plan a has a cost of $.42 a minute for daytime calls and $.17 a minute for evening calls. plan b has a charge of $.52 a minute for daytime calls and $.15 a minute for evening calls. plan c has a flat rate of $80 with 275 minutes of calls allowed per month and a charge of $.38 per minute beyond that, day or evening.a. determine the total charge under each plan for this case: 150 minutes of day calls and 70 minutes of evening calls in a month. (do not round intermediate calculations. round your answer to 2 decimal places. omit the "$" sign in your response.)c. if the agent will use the service for daytime calls, over what range of call minutes will each plan be optimal? (round each answer to the nearest whole number.include the indifference point itself in each answer.)d. suppose that the agent expects both daytime and evening calls. at what point (i.e., percentage of total call minutes used for daytime calls) would she be indifferent between plans a and b?