For the following scenario determine which the independent and dependent variables: (Type either independent or dependent in the blank) a. Sales [dependent], Advertising Budget [Independent]

In regression analysis with more than one independent variable, when is the t test statistic used and what does its p-value mean? 

An economist working for a large retail chain uses the following multiple regression model to estimate daily cold beverage sales: Q=500-20P+ 5T  Q is the predicted quantity of units sold per day, P is the price per unit (in dollars), and T is the daily high temperature (in degrees Fahrenheit). What is the predicted number of units sold on a day when the price is $5 and the temperature is 95°F?

Data collected for an auto repair shop includes the type of repair. Repairs were listed as mechanical, electrical, maintenance, and tire replacement. You are trying to determine if the cost of the repair depends on the type. How would you include this categorical data in a regression model? Be specific and indicate what the columns would look like in Excel. How many columns would you need?

The following estimated regression equation has been proposed to predict sales at a fast food outlet.  y = 18 – 2×1 + 7×2 + 15×3 ​where x1 = the number of competitors within 1 mile x2 = the population within 1 mile (in 1000s) x3 = 1 if drive-up windows are present; 0 otherwise  = estimated sales (in $1000s)   Predict sales for an outlet with 2 competitors, a population of 10,000 within one mile, and no drive-up window (give the answer in dollars).   

An economist working for a large retail chain estimates the relationship between the price of a product and the quantity sold using simple linear regression. The estimated equation is: Q=500-20P where: Q​ is the predicted quantity of units sold per week, and P is the price per unit (in dollars). What is the correct interpretation of the slope in this equation?

74. When teaching a patient about antiviral therapy for recurrent HSV-1, which statement demonstrates understanding of prophylactic therapy?

5. While performing an assessment, the nurse hears crackles in the patient’s lung fields. The nurse also learns that the patient is sleeping on three pillows to help with the difficulty breathing during the night. Which condition will the nurse most likely observe written in the patient’s medical record?

13. Which condition would the nurse report has developed in the patient with a respiratory rate of 25 breaths/min?

38. The nurse auscultates normal soft low-pitched breath sounds throughout the posterior and lateral thoraxes. What is the name of this sound?